Home / 66,315.66-91,505.32-38,015.88

Finding the Fourth Proportional to 66,315.66, 91,505.32 and 38,015.88

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Solution

The fourth proportional to 66,315.66, 91,505.32 and 38,015.88 is: 52,456.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,315.66 : 91,505.32 = 38,015.88 : x
  2. Step 2: Convert to fraction form
    66,315.66/91,505.32 = 38,015.88/x
  3. Step 3: Cross multiply
    66,315.66x = 91,505.32 × 38,015.88
  4. Step 4: Simplify right side
    66,315.66x = 3,478,655,264.48
  5. Step 5: Solve for x
    x = 3,478,655,264.48/66,315.66
  6. Step 6: Final answer
    x = 52,456.02

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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.