Home / 79,477.68-109,727.28-52,643.04

Finding the Fourth Proportional to 79,477.68, 109,727.28 and 52,643.04

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Solution

The fourth proportional to 79,477.68, 109,727.28 and 52,643.04 is: 72,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,477.68 : 109,727.28 = 52,643.04 : x
  2. Step 2: Convert to fraction form
    79,477.68/109,727.28 = 52,643.04/x
  3. Step 3: Cross multiply
    79,477.68x = 109,727.28 × 52,643.04
  4. Step 4: Simplify right side
    79,477.68x = 5,776,377,590.13
  5. Step 5: Solve for x
    x = 5,776,377,590.13/79,477.68
  6. Step 6: Final answer
    x = 72,679.24

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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.