Home / 91,931.52-126,861.48-56,181.36

Finding the Fourth Proportional to 91,931.52, 126,861.48 and 56,181.36

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Solution

The fourth proportional to 91,931.52, 126,861.48 and 56,181.36 is: 77,527.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,931.52 : 126,861.48 = 56,181.36 : x
  2. Step 2: Convert to fraction form
    91,931.52/126,861.48 = 56,181.36/x
  3. Step 3: Cross multiply
    91,931.52x = 126,861.48 × 56,181.36
  4. Step 4: Simplify right side
    91,931.52x = 7,127,250,478.01
  5. Step 5: Solve for x
    x = 7,127,250,478.01/91,931.52
  6. Step 6: Final answer
    x = 77,527.82

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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.