Home / 57,555.28-79,427.40-34,888.72

Finding the Fourth Proportional to 57,555.28, 79,427.40 and 34,888.72

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Solution

The fourth proportional to 57,555.28, 79,427.40 and 34,888.72 is: 48,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,555.28 : 79,427.40 = 34,888.72 : x
  2. Step 2: Convert to fraction form
    57,555.28/79,427.40 = 34,888.72/x
  3. Step 3: Cross multiply
    57,555.28x = 79,427.40 × 34,888.72
  4. Step 4: Simplify right side
    57,555.28x = 2,771,120,318.93
  5. Step 5: Solve for x
    x = 2,771,120,318.93/57,555.28
  6. Step 6: Final answer
    x = 48,147.11

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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.