Home / 72,608.23-100,143.91-52,531.57

Finding the Fourth Proportional to 72,608.23, 100,143.91 and 52,531.57

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Solution

The fourth proportional to 72,608.23, 100,143.91 and 52,531.57 is: 72,453.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,608.23 : 100,143.91 = 52,531.57 : x
  2. Step 2: Convert to fraction form
    72,608.23/100,143.91 = 52,531.57/x
  3. Step 3: Cross multiply
    72,608.23x = 100,143.91 × 52,531.57
  4. Step 4: Simplify right side
    72,608.23x = 5,260,717,009.08
  5. Step 5: Solve for x
    x = 5,260,717,009.08/72,608.23
  6. Step 6: Final answer
    x = 72,453.45

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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.