Home / 72,057.93-99,439.02-40,227.36

Finding the Fourth Proportional to 72,057.93, 99,439.02 and 40,227.36

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Solution

The fourth proportional to 72,057.93, 99,439.02 and 40,227.36 is: 55,513.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,057.93 : 99,439.02 = 40,227.36 : x
  2. Step 2: Convert to fraction form
    72,057.93/99,439.02 = 40,227.36/x
  3. Step 3: Cross multiply
    72,057.93x = 99,439.02 × 40,227.36
  4. Step 4: Simplify right side
    72,057.93x = 4,000,169,255.59
  5. Step 5: Solve for x
    x = 4,000,169,255.59/72,057.93
  6. Step 6: Final answer
    x = 55,513.24

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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.