Home / 72,925.08-100,641.90-40,661.88

Finding the Fourth Proportional to 72,925.08, 100,641.90 and 40,661.88

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Solution

The fourth proportional to 72,925.08, 100,641.90 and 40,661.88 is: 56,116.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,925.08 : 100,641.90 = 40,661.88 : x
  2. Step 2: Convert to fraction form
    72,925.08/100,641.90 = 40,661.88/x
  3. Step 3: Cross multiply
    72,925.08x = 100,641.90 × 40,661.88
  4. Step 4: Simplify right side
    72,925.08x = 4,092,288,860.77
  5. Step 5: Solve for x
    x = 4,092,288,860.77/72,925.08
  6. Step 6: Final answer
    x = 56,116.34

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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.