Home / 81,282.60-112,178.88-45,482.16

Finding the Fourth Proportional to 81,282.60, 112,178.88 and 45,482.16

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Solution

The fourth proportional to 81,282.60, 112,178.88 and 45,482.16 is: 62,770.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,282.60 : 112,178.88 = 45,482.16 : x
  2. Step 2: Convert to fraction form
    81,282.60/112,178.88 = 45,482.16/x
  3. Step 3: Cross multiply
    81,282.60x = 112,178.88 × 45,482.16
  4. Step 4: Simplify right side
    81,282.60x = 5,102,137,768.78
  5. Step 5: Solve for x
    x = 5,102,137,768.78/81,282.60
  6. Step 6: Final answer
    x = 62,770.36

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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.