Home / 66,765.10-92,132.28-38,085.52

Finding the Fourth Proportional to 66,765.10, 92,132.28 and 38,085.52

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Solution

The fourth proportional to 66,765.10, 92,132.28 and 38,085.52 is: 52,555.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,765.10 : 92,132.28 = 38,085.52 : x
  2. Step 2: Convert to fraction form
    66,765.10/92,132.28 = 38,085.52/x
  3. Step 3: Cross multiply
    66,765.10x = 92,132.28 × 38,085.52
  4. Step 4: Simplify right side
    66,765.10x = 3,508,905,792.59
  5. Step 5: Solve for x
    x = 3,508,905,792.59/66,765.10
  6. Step 6: Final answer
    x = 52,555.99

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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.