Home / 72,125.44-99,531.28-40,294.56

Finding the Fourth Proportional to 72,125.44, 99,531.28 and 40,294.56

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Solution

The fourth proportional to 72,125.44, 99,531.28 and 40,294.56 is: 55,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,125.44 : 99,531.28 = 40,294.56 : x
  2. Step 2: Convert to fraction form
    72,125.44/99,531.28 = 40,294.56/x
  3. Step 3: Cross multiply
    72,125.44x = 99,531.28 × 40,294.56
  4. Step 4: Simplify right side
    72,125.44x = 4,010,569,557.45
  5. Step 5: Solve for x
    x = 4,010,569,557.45/72,125.44
  6. Step 6: Final answer
    x = 55,605.48

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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.