Home / 91,326.98-126,111.39-57,394.26

Finding the Fourth Proportional to 91,326.98, 126,111.39 and 57,394.26

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Solution

The fourth proportional to 91,326.98, 126,111.39 and 57,394.26 is: 79,254.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,326.98 : 126,111.39 = 57,394.26 : x
  2. Step 2: Convert to fraction form
    91,326.98/126,111.39 = 57,394.26/x
  3. Step 3: Cross multiply
    91,326.98x = 126,111.39 × 57,394.26
  4. Step 4: Simplify right side
    91,326.98x = 7,238,069,906.62
  5. Step 5: Solve for x
    x = 7,238,069,906.62/91,326.98
  6. Step 6: Final answer
    x = 79,254.45

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1.5x scale

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.