Home / 77,886.32-107,519.00-45,616.46

Finding the Fourth Proportional to 77,886.32, 107,519.00 and 45,616.46

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Solution

The fourth proportional to 77,886.32, 107,519.00 and 45,616.46 is: 62,971.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,886.32 : 107,519.00 = 45,616.46 : x
  2. Step 2: Convert to fraction form
    77,886.32/107,519.00 = 45,616.46/x
  3. Step 3: Cross multiply
    77,886.32x = 107,519.00 × 45,616.46
  4. Step 4: Simplify right side
    77,886.32x = 4,904,635,397.06
  5. Step 5: Solve for x
    x = 4,904,635,397.06/77,886.32
  6. Step 6: Final answer
    x = 62,971.72

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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.