Home / 81,815.60-112,941.95-63,625.23

Finding the Fourth Proportional to 81,815.60, 112,941.95 and 63,625.23

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Solution

The fourth proportional to 81,815.60, 112,941.95 and 63,625.23 is: 87,831.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,815.60 : 112,941.95 = 63,625.23 : x
  2. Step 2: Convert to fraction form
    81,815.60/112,941.95 = 63,625.23/x
  3. Step 3: Cross multiply
    81,815.60x = 112,941.95 × 63,625.23
  4. Step 4: Simplify right side
    81,815.60x = 7,185,957,227.27
  5. Step 5: Solve for x
    x = 7,185,957,227.27/81,815.60
  6. Step 6: Final answer
    x = 87,831.13

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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.