Home / 87,077.49-130,619.13-30,916.86

Finding the Fourth Proportional to 87,077.49, 130,619.13 and 30,916.86

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Solution

The fourth proportional to 87,077.49, 130,619.13 and 30,916.86 is: 46,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,077.49 : 130,619.13 = 30,916.86 : x
  2. Step 2: Convert to fraction form
    87,077.49/130,619.13 = 30,916.86/x
  3. Step 3: Cross multiply
    87,077.49x = 130,619.13 × 30,916.86
  4. Step 4: Simplify right side
    87,077.49x = 4,038,333,355.53
  5. Step 5: Solve for x
    x = 4,038,333,355.53/87,077.49
  6. Step 6: Final answer
    x = 46,376.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.