Home / 91,503.60-126,275.42-51,218.16

Finding the Fourth Proportional to 91,503.60, 126,275.42 and 51,218.16

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Solution

The fourth proportional to 91,503.60, 126,275.42 and 51,218.16 is: 70,681.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,503.60 : 126,275.42 = 51,218.16 : x
  2. Step 2: Convert to fraction form
    91,503.60/126,275.42 = 51,218.16/x
  3. Step 3: Cross multiply
    91,503.60x = 126,275.42 × 51,218.16
  4. Step 4: Simplify right side
    91,503.60x = 6,467,594,665.63
  5. Step 5: Solve for x
    x = 6,467,594,665.63/91,503.60
  6. Step 6: Final answer
    x = 70,681.31

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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.