Home / 91,726.86-126,529.34-57,681.48

Finding the Fourth Proportional to 91,726.86, 126,529.34 and 57,681.48

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Solution

The fourth proportional to 91,726.86, 126,529.34 and 57,681.48 is: 79,566.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,726.86 : 126,529.34 = 57,681.48 : x
  2. Step 2: Convert to fraction form
    91,726.86/126,529.34 = 57,681.48/x
  3. Step 3: Cross multiply
    91,726.86x = 126,529.34 × 57,681.48
  4. Step 4: Simplify right side
    91,726.86x = 7,298,399,594.62
  5. Step 5: Solve for x
    x = 7,298,399,594.62/91,726.86
  6. Step 6: Final answer
    x = 79,566.66

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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.