Home / 52,650.12-72,657.18-28,776.90

Finding the Fourth Proportional to 52,650.12, 72,657.18 and 28,776.90

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Solution

The fourth proportional to 52,650.12, 72,657.18 and 28,776.90 is: 39,712.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,650.12 : 72,657.18 = 28,776.90 : x
  2. Step 2: Convert to fraction form
    52,650.12/72,657.18 = 28,776.90/x
  3. Step 3: Cross multiply
    52,650.12x = 72,657.18 × 28,776.90
  4. Step 4: Simplify right side
    52,650.12x = 2,090,848,403.14
  5. Step 5: Solve for x
    x = 2,090,848,403.14/52,650.12
  6. Step 6: Final answer
    x = 39,712.13

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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.