Home / 77,848.80-107,439.29-47,654.08

Finding the Fourth Proportional to 77,848.80, 107,439.29 and 47,654.08

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Solution

The fourth proportional to 77,848.80, 107,439.29 and 47,654.08 is: 65,767.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,848.80 : 107,439.29 = 47,654.08 : x
  2. Step 2: Convert to fraction form
    77,848.80/107,439.29 = 47,654.08/x
  3. Step 3: Cross multiply
    77,848.80x = 107,439.29 × 47,654.08
  4. Step 4: Simplify right side
    77,848.80x = 5,119,920,013.93
  5. Step 5: Solve for x
    x = 5,119,920,013.93/77,848.80
  6. Step 6: Final answer
    x = 65,767.48

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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.