Home / 77,637.64-107,115.06-47,846.92

Finding the Fourth Proportional to 77,637.64, 107,115.06 and 47,846.92

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Solution

The fourth proportional to 77,637.64, 107,115.06 and 47,846.92 is: 66,013.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,637.64 : 107,115.06 = 47,846.92 : x
  2. Step 2: Convert to fraction form
    77,637.64/107,115.06 = 47,846.92/x
  3. Step 3: Cross multiply
    77,637.64x = 107,115.06 × 47,846.92
  4. Step 4: Simplify right side
    77,637.64x = 5,125,125,706.62
  5. Step 5: Solve for x
    x = 5,125,125,706.62/77,637.64
  6. Step 6: Final answer
    x = 66,013.41

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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.