Home / 91,770.70-126,688.14-61,545.04

Finding the Fourth Proportional to 91,770.70, 126,688.14 and 61,545.04

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Solution

The fourth proportional to 91,770.70, 126,688.14 and 61,545.04 is: 84,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,770.70 : 126,688.14 = 61,545.04 : x
  2. Step 2: Convert to fraction form
    91,770.70/126,688.14 = 61,545.04/x
  3. Step 3: Cross multiply
    91,770.70x = 126,688.14 × 61,545.04
  4. Step 4: Simplify right side
    91,770.70x = 7,797,026,643.83
  5. Step 5: Solve for x
    x = 7,797,026,643.83/91,770.70
  6. Step 6: Final answer
    x = 84,962.05

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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.