Home / 90,031.04-135,062.40-34,622.72

Finding the Fourth Proportional to 90,031.04, 135,062.40 and 34,622.72

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Solution

The fourth proportional to 90,031.04, 135,062.40 and 34,622.72 is: 51,940.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,031.04 : 135,062.40 = 34,622.72 : x
  2. Step 2: Convert to fraction form
    90,031.04/135,062.40 = 34,622.72/x
  3. Step 3: Cross multiply
    90,031.04x = 135,062.40 × 34,622.72
  4. Step 4: Simplify right side
    90,031.04x = 4,676,227,657.73
  5. Step 5: Solve for x
    x = 4,676,227,657.73/90,031.04
  6. Step 6: Final answer
    x = 51,940.17

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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.