Home / 90,191.40-135,139.33-48,026.71

Finding the Fourth Proportional to 90,191.40, 135,139.33 and 48,026.71

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Solution

The fourth proportional to 90,191.40, 135,139.33 and 48,026.71 is: 71,961.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,191.40 : 135,139.33 = 48,026.71 : x
  2. Step 2: Convert to fraction form
    90,191.40/135,139.33 = 48,026.71/x
  3. Step 3: Cross multiply
    90,191.40x = 135,139.33 × 48,026.71
  4. Step 4: Simplify right side
    90,191.40x = 6,490,297,411.50
  5. Step 5: Solve for x
    x = 6,490,297,411.50/90,191.40
  6. Step 6: Final answer
    x = 71,961.38

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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.