Home / 81,637.92-112,651.67-45,831.87

Finding the Fourth Proportional to 81,637.92, 112,651.67 and 45,831.87

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Solution

The fourth proportional to 81,637.92, 112,651.67 and 45,831.87 is: 63,243.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,637.92 : 112,651.67 = 45,831.87 : x
  2. Step 2: Convert to fraction form
    81,637.92/112,651.67 = 45,831.87/x
  3. Step 3: Cross multiply
    81,637.92x = 112,651.67 × 45,831.87
  4. Step 4: Simplify right side
    81,637.92x = 5,163,036,809.30
  5. Step 5: Solve for x
    x = 5,163,036,809.30/81,637.92
  6. Step 6: Final answer
    x = 63,243.12

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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.