Home / 57,326.16-79,109-31,831.20

Finding the Fourth Proportional to 57,326.16, 79,109 and 31,831.20

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Solution

The fourth proportional to 57,326.16, 79,109 and 31,831.20 is: 43,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,326.16 : 79,109 = 31,831.20 : x
  2. Step 2: Convert to fraction form
    57,326.16/79,109 = 31,831.20/x
  3. Step 3: Cross multiply
    57,326.16x = 79,109 × 31,831.20
  4. Step 4: Simplify right side
    57,326.16x = 2,518,134,400.80
  5. Step 5: Solve for x
    x = 2,518,134,400.80/57,326.16
  6. Step 6: Final answer
    x = 43,926.44

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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.