Home / 57,470.06-79,309.65-31,978.46

Finding the Fourth Proportional to 57,470.06, 79,309.65 and 31,978.46

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Solution

The fourth proportional to 57,470.06, 79,309.65 and 31,978.46 is: 44,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,470.06 : 79,309.65 = 31,978.46 : x
  2. Step 2: Convert to fraction form
    57,470.06/79,309.65 = 31,978.46/x
  3. Step 3: Cross multiply
    57,470.06x = 79,309.65 × 31,978.46
  4. Step 4: Simplify right side
    57,470.06x = 2,536,200,470.14
  5. Step 5: Solve for x
    x = 2,536,200,470.14/57,470.06
  6. Step 6: Final answer
    x = 44,130.81

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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.