Home / 72,449.24-99,984.75-40,620.20

Finding the Fourth Proportional to 72,449.24, 99,984.75 and 40,620.20

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Solution

The fourth proportional to 72,449.24, 99,984.75 and 40,620.20 is: 56,058.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,449.24 : 99,984.75 = 40,620.20 : x
  2. Step 2: Convert to fraction form
    72,449.24/99,984.75 = 40,620.20/x
  3. Step 3: Cross multiply
    72,449.24x = 99,984.75 × 40,620.20
  4. Step 4: Simplify right side
    72,449.24x = 4,061,400,541.95
  5. Step 5: Solve for x
    x = 4,061,400,541.95/72,449.24
  6. Step 6: Final answer
    x = 56,058.57

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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.