Home / 77,827.92-107,395.25-45,990.74

Finding the Fourth Proportional to 77,827.92, 107,395.25 and 45,990.74

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Solution

The fourth proportional to 77,827.92, 107,395.25 and 45,990.74 is: 63,462.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,827.92 : 107,395.25 = 45,990.74 : x
  2. Step 2: Convert to fraction form
    77,827.92/107,395.25 = 45,990.74/x
  3. Step 3: Cross multiply
    77,827.92x = 107,395.25 × 45,990.74
  4. Step 4: Simplify right side
    77,827.92x = 4,939,186,253.06
  5. Step 5: Solve for x
    x = 4,939,186,253.06/77,827.92
  6. Step 6: Final answer
    x = 63,462.91

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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.