Home / 72,864.20-100,555.08-42,652.34

Finding the Fourth Proportional to 72,864.20, 100,555.08 and 42,652.34

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Solution

The fourth proportional to 72,864.20, 100,555.08 and 42,652.34 is: 58,861.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,864.20 : 100,555.08 = 42,652.34 : x
  2. Step 2: Convert to fraction form
    72,864.20/100,555.08 = 42,652.34/x
  3. Step 3: Cross multiply
    72,864.20x = 100,555.08 × 42,652.34
  4. Step 4: Simplify right side
    72,864.20x = 4,288,909,460.89
  5. Step 5: Solve for x
    x = 4,288,909,460.89/72,864.20
  6. Step 6: Final answer
    x = 58,861.68

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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.