Home / 165,087.10-247,630.65-40,428.10

Finding the Fourth Proportional to 165,087.10, 247,630.65 and 40,428.10

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Solution

The fourth proportional to 165,087.10, 247,630.65 and 40,428.10 is: 60,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,087.10 : 247,630.65 = 40,428.10 : x
  2. Step 2: Convert to fraction form
    165,087.10/247,630.65 = 40,428.10/x
  3. Step 3: Cross multiply
    165,087.10x = 247,630.65 × 40,428.10
  4. Step 4: Simplify right side
    165,087.10x = 10,011,236,681.27
  5. Step 5: Solve for x
    x = 10,011,236,681.27/165,087.10
  6. Step 6: Final answer
    x = 60,642.15

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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.