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Finding the Fourth Proportional to 72,432.76, 99,959.22 and 40,600.84

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Solution

The fourth proportional to 72,432.76, 99,959.22 and 40,600.84 is: 56,030.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,432.76 : 99,959.22 = 40,600.84 : x
  2. Step 2: Convert to fraction form
    72,432.76/99,959.22 = 40,600.84/x
  3. Step 3: Cross multiply
    72,432.76x = 99,959.22 × 40,600.84
  4. Step 4: Simplify right side
    72,432.76x = 4,058,428,297.74
  5. Step 5: Solve for x
    x = 4,058,428,297.74/72,432.76
  6. Step 6: Final answer
    x = 56,030.29

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1.5x scale

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.