Home / 86,746.39-119,743.05-56,539.06

Finding the Fourth Proportional to 86,746.39, 119,743.05 and 56,539.06

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Solution

The fourth proportional to 86,746.39, 119,743.05 and 56,539.06 is: 78,045.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,746.39 : 119,743.05 = 56,539.06 : x
  2. Step 2: Convert to fraction form
    86,746.39/119,743.05 = 56,539.06/x
  3. Step 3: Cross multiply
    86,746.39x = 119,743.05 × 56,539.06
  4. Step 4: Simplify right side
    86,746.39x = 6,770,159,488.53
  5. Step 5: Solve for x
    x = 6,770,159,488.53/86,746.39
  6. Step 6: Final answer
    x = 78,045.43

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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.