Home / 57,108.15-78,808.02-31,613.04

Finding the Fourth Proportional to 57,108.15, 78,808.02 and 31,613.04

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Solution

The fourth proportional to 57,108.15, 78,808.02 and 31,613.04 is: 43,625.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,108.15 : 78,808.02 = 31,613.04 : x
  2. Step 2: Convert to fraction form
    57,108.15/78,808.02 = 31,613.04/x
  3. Step 3: Cross multiply
    57,108.15x = 78,808.02 × 31,613.04
  4. Step 4: Simplify right side
    57,108.15x = 2,491,361,088.58
  5. Step 5: Solve for x
    x = 2,491,361,088.58/57,108.15
  6. Step 6: Final answer
    x = 43,625.32

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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.