Home / 91,078.23-136,669.19-59,928.15

Finding the Fourth Proportional to 91,078.23, 136,669.19 and 59,928.15

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Solution

The fourth proportional to 91,078.23, 136,669.19 and 59,928.15 is: 89,926.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,078.23 : 136,669.19 = 59,928.15 : x
  2. Step 2: Convert to fraction form
    91,078.23/136,669.19 = 59,928.15/x
  3. Step 3: Cross multiply
    91,078.23x = 136,669.19 × 59,928.15
  4. Step 4: Simplify right side
    91,078.23x = 8,190,331,419.06
  5. Step 5: Solve for x
    x = 8,190,331,419.06/91,078.23
  6. Step 6: Final answer
    x = 89,926.33

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1.5x scale

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.