Home / 56,869.02-78,479.51-31,375.70

Finding the Fourth Proportional to 56,869.02, 78,479.51 and 31,375.70

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Solution

The fourth proportional to 56,869.02, 78,479.51 and 31,375.70 is: 43,298.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,869.02 : 78,479.51 = 31,375.70 : x
  2. Step 2: Convert to fraction form
    56,869.02/78,479.51 = 31,375.70/x
  3. Step 3: Cross multiply
    56,869.02x = 78,479.51 × 31,375.70
  4. Step 4: Simplify right side
    56,869.02x = 2,462,349,247.95
  5. Step 5: Solve for x
    x = 2,462,349,247.95/56,869.02
  6. Step 6: Final answer
    x = 43,298.61

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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.