Home / 84,747.60-127,117.35-28,582.20

Finding the Fourth Proportional to 84,747.60, 127,117.35 and 28,582.20

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Solution

The fourth proportional to 84,747.60, 127,117.35 and 28,582.20 is: 42,871.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,747.60 : 127,117.35 = 28,582.20 : x
  2. Step 2: Convert to fraction form
    84,747.60/127,117.35 = 28,582.20/x
  3. Step 3: Cross multiply
    84,747.60x = 127,117.35 × 28,582.20
  4. Step 4: Simplify right side
    84,747.60x = 3,633,293,521.17
  5. Step 5: Solve for x
    x = 3,633,293,521.17/84,747.60
  6. Step 6: Final answer
    x = 42,871.93

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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.