Home / 56,543,143.39-78,032,870.95-42,579,863.27

Finding the Fourth Proportional to 56,543,143.39, 78,032,870.95 and 42,579,863.27

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Solution

The fourth proportional to 56,543,143.39, 78,032,870.95 and 42,579,863.27 is: 58,762,721.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,543,143.39 : 78,032,870.95 = 42,579,863.27 : x
  2. Step 2: Convert to fraction form
    56,543,143.39/78,032,870.95 = 42,579,863.27/x
  3. Step 3: Cross multiply
    56,543,143.39x = 78,032,870.95 × 42,579,863.27
  4. Step 4: Simplify right side
    56,543,143.39x = 3,322,628,975,616,555.50
  5. Step 5: Solve for x
    x = 3,322,628,975,616,555.50/56,543,143.39
  6. Step 6: Final answer
    x = 58,762,721.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.