Home / 87,128.16-130,663.02-27,949.77

Finding the Fourth Proportional to 87,128.16, 130,663.02 and 27,949.77

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Solution

The fourth proportional to 87,128.16, 130,663.02 and 27,949.77 is: 41,915.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,128.16 : 130,663.02 = 27,949.77 : x
  2. Step 2: Convert to fraction form
    87,128.16/130,663.02 = 27,949.77/x
  3. Step 3: Cross multiply
    87,128.16x = 130,663.02 × 27,949.77
  4. Step 4: Simplify right side
    87,128.16x = 3,652,001,356.51
  5. Step 5: Solve for x
    x = 3,652,001,356.51/87,128.16
  6. Step 6: Final answer
    x = 41,915.28

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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.