Home / 91,663.06-126,503.16-53,420.50

Finding the Fourth Proportional to 91,663.06, 126,503.16 and 53,420.50

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Solution

The fourth proportional to 91,663.06, 126,503.16 and 53,420.50 is: 73,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,663.06 : 126,503.16 = 53,420.50 : x
  2. Step 2: Convert to fraction form
    91,663.06/126,503.16 = 53,420.50/x
  3. Step 3: Cross multiply
    91,663.06x = 126,503.16 × 53,420.50
  4. Step 4: Simplify right side
    91,663.06x = 6,757,862,058.78
  5. Step 5: Solve for x
    x = 6,757,862,058.78/91,663.06
  6. Step 6: Final answer
    x = 73,725.03

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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.