Home / 57,189.87-78,925.23-31,695.75

Finding the Fourth Proportional to 57,189.87, 78,925.23 and 31,695.75

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Solution

The fourth proportional to 57,189.87, 78,925.23 and 31,695.75 is: 43,741.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,189.87 : 78,925.23 = 31,695.75 : x
  2. Step 2: Convert to fraction form
    57,189.87/78,925.23 = 31,695.75/x
  3. Step 3: Cross multiply
    57,189.87x = 78,925.23 × 31,695.75
  4. Step 4: Simplify right side
    57,189.87x = 2,501,594,358.77
  5. Step 5: Solve for x
    x = 2,501,594,358.77/57,189.87
  6. Step 6: Final answer
    x = 43,741.91

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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.