Home / 81,587.57-112,590.35-45,777.47

Finding the Fourth Proportional to 81,587.57, 112,590.35 and 45,777.47

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Solution

The fourth proportional to 81,587.57, 112,590.35 and 45,777.47 is: 63,172.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,587.57 : 112,590.35 = 45,777.47 : x
  2. Step 2: Convert to fraction form
    81,587.57/112,590.35 = 45,777.47/x
  3. Step 3: Cross multiply
    81,587.57x = 112,590.35 × 45,777.47
  4. Step 4: Simplify right side
    81,587.57x = 5,154,100,577.58
  5. Step 5: Solve for x
    x = 5,154,100,577.58/81,587.57
  6. Step 6: Final answer
    x = 63,172.62

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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.