Home / 60,580.47-90,864.22-21,138.33

Finding the Fourth Proportional to 60,580.47, 90,864.22 and 21,138.33

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Solution

The fourth proportional to 60,580.47, 90,864.22 and 21,138.33 is: 31,705.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,580.47 : 90,864.22 = 21,138.33 : x
  2. Step 2: Convert to fraction form
    60,580.47/90,864.22 = 21,138.33/x
  3. Step 3: Cross multiply
    60,580.47x = 90,864.22 × 21,138.33
  4. Step 4: Simplify right side
    60,580.47x = 1,920,717,640.39
  5. Step 5: Solve for x
    x = 1,920,717,640.39/60,580.47
  6. Step 6: Final answer
    x = 31,705.23

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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.