Home / 91,710.16-126,582.51-55,919.89

Finding the Fourth Proportional to 91,710.16, 126,582.51 and 55,919.89

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Solution

The fourth proportional to 91,710.16, 126,582.51 and 55,919.89 is: 77,183.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,710.16 : 126,582.51 = 55,919.89 : x
  2. Step 2: Convert to fraction form
    91,710.16/126,582.51 = 55,919.89/x
  3. Step 3: Cross multiply
    91,710.16x = 126,582.51 × 55,919.89
  4. Step 4: Simplify right side
    91,710.16x = 7,078,480,035.12
  5. Step 5: Solve for x
    x = 7,078,480,035.12/91,710.16
  6. Step 6: Final answer
    x = 77,183.16

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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.