Home / 81,746.50-112,809.18-45,942.58

Finding the Fourth Proportional to 81,746.50, 112,809.18 and 45,942.58

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Solution

The fourth proportional to 81,746.50, 112,809.18 and 45,942.58 is: 63,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,746.50 : 112,809.18 = 45,942.58 : x
  2. Step 2: Convert to fraction form
    81,746.50/112,809.18 = 45,942.58/x
  3. Step 3: Cross multiply
    81,746.50x = 112,809.18 × 45,942.58
  4. Step 4: Simplify right side
    81,746.50x = 5,182,744,776.88
  5. Step 5: Solve for x
    x = 5,182,744,776.88/81,746.50
  6. Step 6: Final answer
    x = 63,400.20

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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.