Home / 90,444.39-135,689.36-53,035.75

Finding the Fourth Proportional to 90,444.39, 135,689.36 and 53,035.75

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Solution

The fourth proportional to 90,444.39, 135,689.36 and 53,035.75 is: 79,566.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,444.39 : 135,689.36 = 53,035.75 : x
  2. Step 2: Convert to fraction form
    90,444.39/135,689.36 = 53,035.75/x
  3. Step 3: Cross multiply
    90,444.39x = 135,689.36 × 53,035.75
  4. Step 4: Simplify right side
    90,444.39x = 7,196,386,974.62
  5. Step 5: Solve for x
    x = 7,196,386,974.62/90,444.39
  6. Step 6: Final answer
    x = 79,566.98

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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.