Home / 90,705.78-136,058.94-27,526.40

Finding the Fourth Proportional to 90,705.78, 136,058.94 and 27,526.40

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Solution

The fourth proportional to 90,705.78, 136,058.94 and 27,526.40 is: 41,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,705.78 : 136,058.94 = 27,526.40 : x
  2. Step 2: Convert to fraction form
    90,705.78/136,058.94 = 27,526.40/x
  3. Step 3: Cross multiply
    90,705.78x = 136,058.94 × 27,526.40
  4. Step 4: Simplify right side
    90,705.78x = 3,745,212,806.02
  5. Step 5: Solve for x
    x = 3,745,212,806.02/90,705.78
  6. Step 6: Final answer
    x = 41,289.68

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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.