Home / 57,389.32-79,175.70-42,317.98

Finding the Fourth Proportional to 57,389.32, 79,175.70 and 42,317.98

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Solution

The fourth proportional to 57,389.32, 79,175.70 and 42,317.98 is: 58,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,389.32 : 79,175.70 = 42,317.98 : x
  2. Step 2: Convert to fraction form
    57,389.32/79,175.70 = 42,317.98/x
  3. Step 3: Cross multiply
    57,389.32x = 79,175.70 × 42,317.98
  4. Step 4: Simplify right side
    57,389.32x = 3,350,555,689.09
  5. Step 5: Solve for x
    x = 3,350,555,689.09/57,389.32
  6. Step 6: Final answer
    x = 58,382.91

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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.