Home / 66,114.68-91,215.45-42,255.32

Finding the Fourth Proportional to 66,114.68, 91,215.45 and 42,255.32

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Solution

The fourth proportional to 66,114.68, 91,215.45 and 42,255.32 is: 58,297.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,114.68 : 91,215.45 = 42,255.32 : x
  2. Step 2: Convert to fraction form
    66,114.68/91,215.45 = 42,255.32/x
  3. Step 3: Cross multiply
    66,114.68x = 91,215.45 × 42,255.32
  4. Step 4: Simplify right side
    66,114.68x = 3,854,337,572.62
  5. Step 5: Solve for x
    x = 3,854,337,572.62/66,114.68
  6. Step 6: Final answer
    x = 58,297.76

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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.