Home / 85,500.74-128,264.90-26,336.39

Finding the Fourth Proportional to 85,500.74, 128,264.90 and 26,336.39

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Solution

The fourth proportional to 85,500.74, 128,264.90 and 26,336.39 is: 39,508.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,500.74 : 128,264.90 = 26,336.39 : x
  2. Step 2: Convert to fraction form
    85,500.74/128,264.90 = 26,336.39/x
  3. Step 3: Cross multiply
    85,500.74x = 128,264.90 × 26,336.39
  4. Step 4: Simplify right side
    85,500.74x = 3,378,034,298.03
  5. Step 5: Solve for x
    x = 3,378,034,298.03/85,500.74
  6. Step 6: Final answer
    x = 39,508.83

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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.