Home / 84,870.64-127,306.32-28,711.09

Finding the Fourth Proportional to 84,870.64, 127,306.32 and 28,711.09

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Solution

The fourth proportional to 84,870.64, 127,306.32 and 28,711.09 is: 43,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,870.64 : 127,306.32 = 28,711.09 : x
  2. Step 2: Convert to fraction form
    84,870.64/127,306.32 = 28,711.09/x
  3. Step 3: Cross multiply
    84,870.64x = 127,306.32 × 28,711.09
  4. Step 4: Simplify right side
    84,870.64x = 3,655,103,211.09
  5. Step 5: Solve for x
    x = 3,655,103,211.09/84,870.64
  6. Step 6: Final answer
    x = 43,066.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.