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Finding the Fourth Proportional to 52,752.40, 72,799.18 and 28,878.68

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Solution

The fourth proportional to 52,752.40, 72,799.18 and 28,878.68 is: 39,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,752.40 : 72,799.18 = 28,878.68 : x
  2. Step 2: Convert to fraction form
    52,752.40/72,799.18 = 28,878.68/x
  3. Step 3: Cross multiply
    52,752.40x = 72,799.18 × 28,878.68
  4. Step 4: Simplify right side
    52,752.40x = 2,102,344,223.48
  5. Step 5: Solve for x
    x = 2,102,344,223.48/52,752.40
  6. Step 6: Final answer
    x = 39,853.05

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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.