Home / 66,713.13-92,139.71-45,455.49

Finding the Fourth Proportional to 66,713.13, 92,139.71 and 45,455.49

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Solution

The fourth proportional to 66,713.13, 92,139.71 and 45,455.49 is: 62,780.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,713.13 : 92,139.71 = 45,455.49 : x
  2. Step 2: Convert to fraction form
    66,713.13/92,139.71 = 45,455.49/x
  3. Step 3: Cross multiply
    66,713.13x = 92,139.71 × 45,455.49
  4. Step 4: Simplify right side
    66,713.13x = 4,188,255,439.23
  5. Step 5: Solve for x
    x = 4,188,255,439.23/66,713.13
  6. Step 6: Final answer
    x = 62,780.08

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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.