Home / 72,728.34-100,366.47-42,516.24

Finding the Fourth Proportional to 72,728.34, 100,366.47 and 42,516.24

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Solution

The fourth proportional to 72,728.34, 100,366.47 and 42,516.24 is: 58,673.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,728.34 : 100,366.47 = 42,516.24 : x
  2. Step 2: Convert to fraction form
    72,728.34/100,366.47 = 42,516.24/x
  3. Step 3: Cross multiply
    72,728.34x = 100,366.47 × 42,516.24
  4. Step 4: Simplify right side
    72,728.34x = 4,267,204,926.47
  5. Step 5: Solve for x
    x = 4,267,204,926.47/72,728.34
  6. Step 6: Final answer
    x = 58,673.21

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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.