Home / 42,002.60-62,906.70-28,783.40

Finding the Fourth Proportional to 42,002.60, 62,906.70 and 28,783.40

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Solution

The fourth proportional to 42,002.60, 62,906.70 and 28,783.40 is: 43,108.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,002.60 : 62,906.70 = 28,783.40 : x
  2. Step 2: Convert to fraction form
    42,002.60/62,906.70 = 28,783.40/x
  3. Step 3: Cross multiply
    42,002.60x = 62,906.70 × 28,783.40
  4. Step 4: Simplify right side
    42,002.60x = 1,810,668,708.78
  5. Step 5: Solve for x
    x = 1,810,668,708.78/42,002.60
  6. Step 6: Final answer
    x = 43,108.49

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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.