Home / 91,782.72-126,645.12-54,051.84

Finding the Fourth Proportional to 91,782.72, 126,645.12 and 54,051.84

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Solution

The fourth proportional to 91,782.72, 126,645.12 and 54,051.84 is: 74,582.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,782.72 : 126,645.12 = 54,051.84 : x
  2. Step 2: Convert to fraction form
    91,782.72/126,645.12 = 54,051.84/x
  3. Step 3: Cross multiply
    91,782.72x = 126,645.12 × 54,051.84
  4. Step 4: Simplify right side
    91,782.72x = 6,845,401,763.02
  5. Step 5: Solve for x
    x = 6,845,401,763.02/91,782.72
  6. Step 6: Final answer
    x = 74,582.69

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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.