Home / 91,317.43-126,017.69-51,031.18

Finding the Fourth Proportional to 91,317.43, 126,017.69 and 51,031.18

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Solution

The fourth proportional to 91,317.43, 126,017.69 and 51,031.18 is: 70,422.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,317.43 : 126,017.69 = 51,031.18 : x
  2. Step 2: Convert to fraction form
    91,317.43/126,017.69 = 51,031.18/x
  3. Step 3: Cross multiply
    91,317.43x = 126,017.69 × 51,031.18
  4. Step 4: Simplify right side
    91,317.43x = 6,430,831,610.99
  5. Step 5: Solve for x
    x = 6,430,831,610.99/91,317.43
  6. Step 6: Final answer
    x = 70,422.83

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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.