Home / 99,308.38-137,031.30-58,448.20

Finding the Fourth Proportional to 99,308.38, 137,031.30 and 58,448.20

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Solution

The fourth proportional to 99,308.38, 137,031.30 and 58,448.20 is: 80,650.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,308.38 : 137,031.30 = 58,448.20 : x
  2. Step 2: Convert to fraction form
    99,308.38/137,031.30 = 58,448.20/x
  3. Step 3: Cross multiply
    99,308.38x = 137,031.30 × 58,448.20
  4. Step 4: Simplify right side
    99,308.38x = 8,009,232,828.66
  5. Step 5: Solve for x
    x = 8,009,232,828.66/99,308.38
  6. Step 6: Final answer
    x = 80,650.12

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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.