Home / 91,624.30-126,398.70-61,012.79

Finding the Fourth Proportional to 91,624.30, 126,398.70 and 61,012.79

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Solution

The fourth proportional to 91,624.30, 126,398.70 and 61,012.79 is: 84,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,624.30 : 126,398.70 = 61,012.79 : x
  2. Step 2: Convert to fraction form
    91,624.30/126,398.70 = 61,012.79/x
  3. Step 3: Cross multiply
    91,624.30x = 126,398.70 × 61,012.79
  4. Step 4: Simplify right side
    91,624.30x = 7,711,937,339.37
  5. Step 5: Solve for x
    x = 7,711,937,339.37/91,624.30
  6. Step 6: Final answer
    x = 84,169.13

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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.