Home / 89,965.55-135,030.63-45,622.91

Finding the Fourth Proportional to 89,965.55, 135,030.63 and 45,622.91

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Solution

The fourth proportional to 89,965.55, 135,030.63 and 45,622.91 is: 68,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,965.55 : 135,030.63 = 45,622.91 : x
  2. Step 2: Convert to fraction form
    89,965.55/135,030.63 = 45,622.91/x
  3. Step 3: Cross multiply
    89,965.55x = 135,030.63 × 45,622.91
  4. Step 4: Simplify right side
    89,965.55x = 6,160,490,279.73
  5. Step 5: Solve for x
    x = 6,160,490,279.73/89,965.55
  6. Step 6: Final answer
    x = 68,476.10

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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.