Home / 91,317-126,017.10-51,030.75

Finding the Fourth Proportional to 91,317, 126,017.10 and 51,030.75

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Solution

The fourth proportional to 91,317, 126,017.10 and 51,030.75 is: 70,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,317 : 126,017.10 = 51,030.75 : x
  2. Step 2: Convert to fraction form
    91,317/126,017.10 = 51,030.75/x
  3. Step 3: Cross multiply
    91,317x = 126,017.10 × 51,030.75
  4. Step 4: Simplify right side
    91,317x = 6,430,747,125.83
  5. Step 5: Solve for x
    x = 6,430,747,125.83/91,317
  6. Step 6: Final answer
    x = 70,422.23

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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.