Home / 91,398.93-126,129.65-51,112.23

Finding the Fourth Proportional to 91,398.93, 126,129.65 and 51,112.23

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Solution

The fourth proportional to 91,398.93, 126,129.65 and 51,112.23 is: 70,534.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,398.93 : 126,129.65 = 51,112.23 : x
  2. Step 2: Convert to fraction form
    91,398.93/126,129.65 = 51,112.23/x
  3. Step 3: Cross multiply
    91,398.93x = 126,129.65 × 51,112.23
  4. Step 4: Simplify right side
    91,398.93x = 6,446,767,680.62
  5. Step 5: Solve for x
    x = 6,446,767,680.62/91,398.93
  6. Step 6: Final answer
    x = 70,534.39

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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.