Home / 91,307.30-126,003.79-51,021.10

Finding the Fourth Proportional to 91,307.30, 126,003.79 and 51,021.10

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Solution

The fourth proportional to 91,307.30, 126,003.79 and 51,021.10 is: 70,408.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,307.30 : 126,003.79 = 51,021.10 : x
  2. Step 2: Convert to fraction form
    91,307.30/126,003.79 = 51,021.10/x
  3. Step 3: Cross multiply
    91,307.30x = 126,003.79 × 51,021.10
  4. Step 4: Simplify right side
    91,307.30x = 6,428,851,482.48
  5. Step 5: Solve for x
    x = 6,428,851,482.48/91,307.30
  6. Step 6: Final answer
    x = 70,408.96

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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.