Home / 90,484.20-135,770.46-64,000.35

Finding the Fourth Proportional to 90,484.20, 135,770.46 and 64,000.35

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Solution

The fourth proportional to 90,484.20, 135,770.46 and 64,000.35 is: 96,031.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,484.20 : 135,770.46 = 64,000.35 : x
  2. Step 2: Convert to fraction form
    90,484.20/135,770.46 = 64,000.35/x
  3. Step 3: Cross multiply
    90,484.20x = 135,770.46 × 64,000.35
  4. Step 4: Simplify right side
    90,484.20x = 8,689,356,959.66
  5. Step 5: Solve for x
    x = 8,689,356,959.66/90,484.20
  6. Step 6: Final answer
    x = 96,031.76

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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.