Home / 72,708.34-100,337.26-42,487.62

Finding the Fourth Proportional to 72,708.34, 100,337.26 and 42,487.62

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Solution

The fourth proportional to 72,708.34, 100,337.26 and 42,487.62 is: 58,632.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,708.34 : 100,337.26 = 42,487.62 : x
  2. Step 2: Convert to fraction form
    72,708.34/100,337.26 = 42,487.62/x
  3. Step 3: Cross multiply
    72,708.34x = 100,337.26 × 42,487.62
  4. Step 4: Simplify right side
    72,708.34x = 4,263,091,374.72
  5. Step 5: Solve for x
    x = 4,263,091,374.72/72,708.34
  6. Step 6: Final answer
    x = 58,632.77

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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.