Home / 47,118.40-70,582.18-21,781.92

Finding the Fourth Proportional to 47,118.40, 70,582.18 and 21,781.92

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Solution

The fourth proportional to 47,118.40, 70,582.18 and 21,781.92 is: 32,628.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,118.40 : 70,582.18 = 21,781.92 : x
  2. Step 2: Convert to fraction form
    47,118.40/70,582.18 = 21,781.92/x
  3. Step 3: Cross multiply
    47,118.40x = 70,582.18 × 21,781.92
  4. Step 4: Simplify right side
    47,118.40x = 1,537,415,398.19
  5. Step 5: Solve for x
    x = 1,537,415,398.19/47,118.40
  6. Step 6: Final answer
    x = 32,628.77

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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.