Home / 91,291.05-136,988.15-49,170.24

Finding the Fourth Proportional to 91,291.05, 136,988.15 and 49,170.24

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Solution

The fourth proportional to 91,291.05, 136,988.15 and 49,170.24 is: 73,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,291.05 : 136,988.15 = 49,170.24 : x
  2. Step 2: Convert to fraction form
    91,291.05/136,988.15 = 49,170.24/x
  3. Step 3: Cross multiply
    91,291.05x = 136,988.15 × 49,170.24
  4. Step 4: Simplify right side
    91,291.05x = 6,735,739,966.80
  5. Step 5: Solve for x
    x = 6,735,739,966.80/91,291.05
  6. Step 6: Final answer
    x = 73,783.14

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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.