Home / 90,695.70-136,043.55-28,358.10

Finding the Fourth Proportional to 90,695.70, 136,043.55 and 28,358.10

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Solution

The fourth proportional to 90,695.70, 136,043.55 and 28,358.10 is: 42,537.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,695.70 : 136,043.55 = 28,358.10 : x
  2. Step 2: Convert to fraction form
    90,695.70/136,043.55 = 28,358.10/x
  3. Step 3: Cross multiply
    90,695.70x = 136,043.55 × 28,358.10
  4. Step 4: Simplify right side
    90,695.70x = 3,857,936,595.26
  5. Step 5: Solve for x
    x = 3,857,936,595.26/90,695.70
  6. Step 6: Final answer
    x = 42,537.15

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1.5x scale

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.