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Finding the Fourth Proportional to 86,151.71, 129,212.97 and 23,807.63

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Solution

The fourth proportional to 86,151.71, 129,212.97 and 23,807.63 is: 35,707.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,151.71 : 129,212.97 = 23,807.63 : x
  2. Step 2: Convert to fraction form
    86,151.71/129,212.97 = 23,807.63/x
  3. Step 3: Cross multiply
    86,151.71x = 129,212.97 × 23,807.63
  4. Step 4: Simplify right side
    86,151.71x = 3,076,253,934.90
  5. Step 5: Solve for x
    x = 3,076,253,934.90/86,151.71
  6. Step 6: Final answer
    x = 35,707.41

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1.5x scale

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.