Home / 91,060.66-125,589.45-76,468.51

Finding the Fourth Proportional to 91,060.66, 125,589.45 and 76,468.51

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Solution

The fourth proportional to 91,060.66, 125,589.45 and 76,468.51 is: 105,464.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,060.66 : 125,589.45 = 76,468.51 : x
  2. Step 2: Convert to fraction form
    91,060.66/125,589.45 = 76,468.51/x
  3. Step 3: Cross multiply
    91,060.66x = 125,589.45 × 76,468.51
  4. Step 4: Simplify right side
    91,060.66x = 9,603,638,113.22
  5. Step 5: Solve for x
    x = 9,603,638,113.22/91,060.66
  6. Step 6: Final answer
    x = 105,464.18

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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.