Home / 90,175.02-124,419.15-58,305.57

Finding the Fourth Proportional to 90,175.02, 124,419.15 and 58,305.57

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Solution

The fourth proportional to 90,175.02, 124,419.15 and 58,305.57 is: 80,447.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,175.02 : 124,419.15 = 58,305.57 : x
  2. Step 2: Convert to fraction form
    90,175.02/124,419.15 = 58,305.57/x
  3. Step 3: Cross multiply
    90,175.02x = 124,419.15 × 58,305.57
  4. Step 4: Simplify right side
    90,175.02x = 7,254,329,459.67
  5. Step 5: Solve for x
    x = 7,254,329,459.67/90,175.02
  6. Step 6: Final answer
    x = 80,447.22

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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.