Home / 83,831.42-115,628.80-56,927.22

Finding the Fourth Proportional to 83,831.42, 115,628.80 and 56,927.22

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Solution

The fourth proportional to 83,831.42, 115,628.80 and 56,927.22 is: 78,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,831.42 : 115,628.80 = 56,927.22 : x
  2. Step 2: Convert to fraction form
    83,831.42/115,628.80 = 56,927.22/x
  3. Step 3: Cross multiply
    83,831.42x = 115,628.80 × 56,927.22
  4. Step 4: Simplify right side
    83,831.42x = 6,582,425,273.16
  5. Step 5: Solve for x
    x = 6,582,425,273.16/83,831.42
  6. Step 6: Final answer
    x = 78,519.79

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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.