Home / 91,427.93-126,248.42-57,493.21

Finding the Fourth Proportional to 91,427.93, 126,248.42 and 57,493.21

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Solution

The fourth proportional to 91,427.93, 126,248.42 and 57,493.21 is: 79,389.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,427.93 : 126,248.42 = 57,493.21 : x
  2. Step 2: Convert to fraction form
    91,427.93/126,248.42 = 57,493.21/x
  3. Step 3: Cross multiply
    91,427.93x = 126,248.42 × 57,493.21
  4. Step 4: Simplify right side
    91,427.93x = 7,258,426,004.52
  5. Step 5: Solve for x
    x = 7,258,426,004.52/91,427.93
  6. Step 6: Final answer
    x = 79,389.59

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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.