Home / 91,500.13-126,264.32-51,207.09

Finding the Fourth Proportional to 91,500.13, 126,264.32 and 51,207.09

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Solution

The fourth proportional to 91,500.13, 126,264.32 and 51,207.09 is: 70,662.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,500.13 : 126,264.32 = 51,207.09 : x
  2. Step 2: Convert to fraction form
    91,500.13/126,264.32 = 51,207.09/x
  3. Step 3: Cross multiply
    91,500.13x = 126,264.32 × 51,207.09
  4. Step 4: Simplify right side
    91,500.13x = 6,465,627,860.53
  5. Step 5: Solve for x
    x = 6,465,627,860.53/91,500.13
  6. Step 6: Final answer
    x = 70,662.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.