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Finding the Fourth Proportional to 52,860.68, 72,947.10 and 28,987.16

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Solution

The fourth proportional to 52,860.68, 72,947.10 and 28,987.16 is: 40,001.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,860.68 : 72,947.10 = 28,987.16 : x
  2. Step 2: Convert to fraction form
    52,860.68/72,947.10 = 28,987.16/x
  3. Step 3: Cross multiply
    52,860.68x = 72,947.10 × 28,987.16
  4. Step 4: Simplify right side
    52,860.68x = 2,114,529,259.24
  5. Step 5: Solve for x
    x = 2,114,529,259.24/52,860.68
  6. Step 6: Final answer
    x = 40,001.93

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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.