Home / 87,279.48-130,929.47-31,127.57

Finding the Fourth Proportional to 87,279.48, 130,929.47 and 31,127.57

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Solution

The fourth proportional to 87,279.48, 130,929.47 and 31,127.57 is: 46,695.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,279.48 : 130,929.47 = 31,127.57 : x
  2. Step 2: Convert to fraction form
    87,279.48/130,929.47 = 31,127.57/x
  3. Step 3: Cross multiply
    87,279.48x = 130,929.47 × 31,127.57
  4. Step 4: Simplify right side
    87,279.48x = 4,075,516,242.49
  5. Step 5: Solve for x
    x = 4,075,516,242.49/87,279.48
  6. Step 6: Final answer
    x = 46,695.01

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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.