Home / 57,068.98-78,757.53-31,574.92

Finding the Fourth Proportional to 57,068.98, 78,757.53 and 31,574.92

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Solution

The fourth proportional to 57,068.98, 78,757.53 and 31,574.92 is: 43,574.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,068.98 : 78,757.53 = 31,574.92 : x
  2. Step 2: Convert to fraction form
    57,068.98/78,757.53 = 31,574.92/x
  3. Step 3: Cross multiply
    57,068.98x = 78,757.53 × 31,574.92
  4. Step 4: Simplify right side
    57,068.98x = 2,486,762,709.15
  5. Step 5: Solve for x
    x = 2,486,762,709.15/57,068.98
  6. Step 6: Final answer
    x = 43,574.68

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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.