Home / 91,069.48-136,656.06-59,919.40

Finding the Fourth Proportional to 91,069.48, 136,656.06 and 59,919.40

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Solution

The fourth proportional to 91,069.48, 136,656.06 and 59,919.40 is: 89,913.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,069.48 : 136,656.06 = 59,919.40 : x
  2. Step 2: Convert to fraction form
    91,069.48/136,656.06 = 59,919.40/x
  3. Step 3: Cross multiply
    91,069.48x = 136,656.06 × 59,919.40
  4. Step 4: Simplify right side
    91,069.48x = 8,188,349,121.56
  5. Step 5: Solve for x
    x = 8,188,349,121.56/91,069.48
  6. Step 6: Final answer
    x = 89,913.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.