Home / 91,856.12-126,750.52-51,561.04

Finding the Fourth Proportional to 91,856.12, 126,750.52 and 51,561.04

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Solution

The fourth proportional to 91,856.12, 126,750.52 and 51,561.04 is: 71,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,856.12 : 126,750.52 = 51,561.04 : x
  2. Step 2: Convert to fraction form
    91,856.12/126,750.52 = 51,561.04/x
  3. Step 3: Cross multiply
    91,856.12x = 126,750.52 × 51,561.04
  4. Step 4: Simplify right side
    91,856.12x = 6,535,388,631.74
  5. Step 5: Solve for x
    x = 6,535,388,631.74/91,856.12
  6. Step 6: Final answer
    x = 71,148.10

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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.