Home / 72,250.56-99,712.35-40,429.71

Finding the Fourth Proportional to 72,250.56, 99,712.35 and 40,429.71

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Solution

The fourth proportional to 72,250.56, 99,712.35 and 40,429.71 is: 55,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,250.56 : 99,712.35 = 40,429.71 : x
  2. Step 2: Convert to fraction form
    72,250.56/99,712.35 = 40,429.71/x
  3. Step 3: Cross multiply
    72,250.56x = 99,712.35 × 40,429.71
  4. Step 4: Simplify right side
    72,250.56x = 4,031,341,393.92
  5. Step 5: Solve for x
    x = 4,031,341,393.92/72,250.56
  6. Step 6: Final answer
    x = 55,796.68

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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.