Home / 72,084.42-99,472.38-43,045.56

Finding the Fourth Proportional to 72,084.42, 99,472.38 and 43,045.56

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Solution

The fourth proportional to 72,084.42, 99,472.38 and 43,045.56 is: 59,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,084.42 : 99,472.38 = 43,045.56 : x
  2. Step 2: Convert to fraction form
    72,084.42/99,472.38 = 43,045.56/x
  3. Step 3: Cross multiply
    72,084.42x = 99,472.38 × 43,045.56
  4. Step 4: Simplify right side
    72,084.42x = 4,281,844,115.12
  5. Step 5: Solve for x
    x = 4,281,844,115.12/72,084.42
  6. Step 6: Final answer
    x = 59,400.41

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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.