Home / 91,770.13-126,651.40-53,526.72

Finding the Fourth Proportional to 91,770.13, 126,651.40 and 53,526.72

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Solution

The fourth proportional to 91,770.13, 126,651.40 and 53,526.72 is: 73,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,770.13 : 126,651.40 = 53,526.72 : x
  2. Step 2: Convert to fraction form
    91,770.13/126,651.40 = 53,526.72/x
  3. Step 3: Cross multiply
    91,770.13x = 126,651.40 × 53,526.72
  4. Step 4: Simplify right side
    91,770.13x = 6,779,234,366.53
  5. Step 5: Solve for x
    x = 6,779,234,366.53/91,770.13
  6. Step 6: Final answer
    x = 73,871.90

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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.