Home / 66,247.13-91,420.14-36,031.80

Finding the Fourth Proportional to 66,247.13, 91,420.14 and 36,031.80

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Solution

The fourth proportional to 66,247.13, 91,420.14 and 36,031.80 is: 49,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,247.13 : 91,420.14 = 36,031.80 : x
  2. Step 2: Convert to fraction form
    66,247.13/91,420.14 = 36,031.80/x
  3. Step 3: Cross multiply
    66,247.13x = 91,420.14 × 36,031.80
  4. Step 4: Simplify right side
    66,247.13x = 3,294,032,200.45
  5. Step 5: Solve for x
    x = 3,294,032,200.45/66,247.13
  6. Step 6: Final answer
    x = 49,723.39

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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.