Home / 72,430.61-99,917.10-43,734.44

Finding the Fourth Proportional to 72,430.61, 99,917.10 and 43,734.44

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Solution

The fourth proportional to 72,430.61, 99,917.10 and 43,734.44 is: 60,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,430.61 : 99,917.10 = 43,734.44 : x
  2. Step 2: Convert to fraction form
    72,430.61/99,917.10 = 43,734.44/x
  3. Step 3: Cross multiply
    72,430.61x = 99,917.10 × 43,734.44
  4. Step 4: Simplify right side
    72,430.61x = 4,369,818,414.92
  5. Step 5: Solve for x
    x = 4,369,818,414.92/72,430.61
  6. Step 6: Final answer
    x = 60,331.10

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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.