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Finding the Fourth Proportional to 77,759.52, 107,271.18 and 45,907.08

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Solution

The fourth proportional to 77,759.52, 107,271.18 and 45,907.08 is: 63,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,759.52 : 107,271.18 = 45,907.08 : x
  2. Step 2: Convert to fraction form
    77,759.52/107,271.18 = 45,907.08/x
  3. Step 3: Cross multiply
    77,759.52x = 107,271.18 × 45,907.08
  4. Step 4: Simplify right side
    77,759.52x = 4,924,506,641.95
  5. Step 5: Solve for x
    x = 4,924,506,641.95/77,759.52
  6. Step 6: Final answer
    x = 63,329.95

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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.