Home / 56,433.04-77,872.36-31,280.40

Finding the Fourth Proportional to 56,433.04, 77,872.36 and 31,280.40

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Solution

The fourth proportional to 56,433.04, 77,872.36 and 31,280.40 is: 43,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,433.04 : 77,872.36 = 31,280.40 : x
  2. Step 2: Convert to fraction form
    56,433.04/77,872.36 = 31,280.40/x
  3. Step 3: Cross multiply
    56,433.04x = 77,872.36 × 31,280.40
  4. Step 4: Simplify right side
    56,433.04x = 2,435,878,569.74
  5. Step 5: Solve for x
    x = 2,435,878,569.74/56,433.04
  6. Step 6: Final answer
    x = 43,164.05

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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.