Home / 77,399.28-106,811.04-45,587.76

Finding the Fourth Proportional to 77,399.28, 106,811.04 and 45,587.76

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Solution

The fourth proportional to 77,399.28, 106,811.04 and 45,587.76 is: 62,911.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,399.28 : 106,811.04 = 45,587.76 : x
  2. Step 2: Convert to fraction form
    77,399.28/106,811.04 = 45,587.76/x
  3. Step 3: Cross multiply
    77,399.28x = 106,811.04 × 45,587.76
  4. Step 4: Simplify right side
    77,399.28x = 4,869,276,056.87
  5. Step 5: Solve for x
    x = 4,869,276,056.87/77,399.28
  6. Step 6: Final answer
    x = 62,911.13

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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.