Home / 66,627.20-91,948.96-38,337.12

Finding the Fourth Proportional to 66,627.20, 91,948.96 and 38,337.12

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Solution

The fourth proportional to 66,627.20, 91,948.96 and 38,337.12 is: 52,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,627.20 : 91,948.96 = 38,337.12 : x
  2. Step 2: Convert to fraction form
    66,627.20/91,948.96 = 38,337.12/x
  3. Step 3: Cross multiply
    66,627.20x = 91,948.96 × 38,337.12
  4. Step 4: Simplify right side
    66,627.20x = 3,525,058,313.40
  5. Step 5: Solve for x
    x = 3,525,058,313.40/66,627.20
  6. Step 6: Final answer
    x = 52,907.20

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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.