Home / 81,661.25-112,689.58-45,852.77

Finding the Fourth Proportional to 81,661.25, 112,689.58 and 45,852.77

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Solution

The fourth proportional to 81,661.25, 112,689.58 and 45,852.77 is: 63,275.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,661.25 : 112,689.58 = 45,852.77 : x
  2. Step 2: Convert to fraction form
    81,661.25/112,689.58 = 45,852.77/x
  3. Step 3: Cross multiply
    81,661.25x = 112,689.58 × 45,852.77
  4. Step 4: Simplify right side
    81,661.25x = 5,167,128,600.42
  5. Step 5: Solve for x
    x = 5,167,128,600.42/81,661.25
  6. Step 6: Final answer
    x = 63,275.16

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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.