Home / 91,144.12-125,775.84-53,417.56

Finding the Fourth Proportional to 91,144.12, 125,775.84 and 53,417.56

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Solution

The fourth proportional to 91,144.12, 125,775.84 and 53,417.56 is: 73,714.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,144.12 : 125,775.84 = 53,417.56 : x
  2. Step 2: Convert to fraction form
    91,144.12/125,775.84 = 53,417.56/x
  3. Step 3: Cross multiply
    91,144.12x = 125,775.84 × 53,417.56
  4. Step 4: Simplify right side
    91,144.12x = 6,718,638,479.75
  5. Step 5: Solve for x
    x = 6,718,638,479.75/91,144.12
  6. Step 6: Final answer
    x = 73,714.45

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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.