Home / 55,868.48-77,102.28-30,717.92

Finding the Fourth Proportional to 55,868.48, 77,102.28 and 30,717.92

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Solution

The fourth proportional to 55,868.48, 77,102.28 and 30,717.92 is: 42,392.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,868.48 : 77,102.28 = 30,717.92 : x
  2. Step 2: Convert to fraction form
    55,868.48/77,102.28 = 30,717.92/x
  3. Step 3: Cross multiply
    55,868.48x = 77,102.28 × 30,717.92
  4. Step 4: Simplify right side
    55,868.48x = 2,368,421,668.86
  5. Step 5: Solve for x
    x = 2,368,421,668.86/55,868.48
  6. Step 6: Final answer
    x = 42,392.81

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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.