Home / 84,624.18-126,903.45-45,159.77

Finding the Fourth Proportional to 84,624.18, 126,903.45 and 45,159.77

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Solution

The fourth proportional to 84,624.18, 126,903.45 and 45,159.77 is: 67,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,624.18 : 126,903.45 = 45,159.77 : x
  2. Step 2: Convert to fraction form
    84,624.18/126,903.45 = 45,159.77/x
  3. Step 3: Cross multiply
    84,624.18x = 126,903.45 × 45,159.77
  4. Step 4: Simplify right side
    84,624.18x = 5,730,929,979.69
  5. Step 5: Solve for x
    x = 5,730,929,979.69/84,624.18
  6. Step 6: Final answer
    x = 67,722.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.