Home / 66,859.12-92,242.80-38,158.20

Finding the Fourth Proportional to 66,859.12, 92,242.80 and 38,158.20

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Solution

The fourth proportional to 66,859.12, 92,242.80 and 38,158.20 is: 52,645.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,859.12 : 92,242.80 = 38,158.20 : x
  2. Step 2: Convert to fraction form
    66,859.12/92,242.80 = 38,158.20/x
  3. Step 3: Cross multiply
    66,859.12x = 92,242.80 × 38,158.20
  4. Step 4: Simplify right side
    66,859.12x = 3,519,819,210.96
  5. Step 5: Solve for x
    x = 3,519,819,210.96/66,859.12
  6. Step 6: Final answer
    x = 52,645.31

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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.