Home / 57,312.02-79,089.30-31,816.88

Finding the Fourth Proportional to 57,312.02, 79,089.30 and 31,816.88

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Solution

The fourth proportional to 57,312.02, 79,089.30 and 31,816.88 is: 43,906.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,312.02 : 79,089.30 = 31,816.88 : x
  2. Step 2: Convert to fraction form
    57,312.02/79,089.30 = 31,816.88/x
  3. Step 3: Cross multiply
    57,312.02x = 79,089.30 × 31,816.88
  4. Step 4: Simplify right side
    57,312.02x = 2,516,374,767.38
  5. Step 5: Solve for x
    x = 2,516,374,767.38/57,312.02
  6. Step 6: Final answer
    x = 43,906.58

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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.