Home / 72,288.17-99,757.66-40,457.07

Finding the Fourth Proportional to 72,288.17, 99,757.66 and 40,457.07

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Solution

The fourth proportional to 72,288.17, 99,757.66 and 40,457.07 is: 55,830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,288.17 : 99,757.66 = 40,457.07 : x
  2. Step 2: Convert to fraction form
    72,288.17/99,757.66 = 40,457.07/x
  3. Step 3: Cross multiply
    72,288.17x = 99,757.66 × 40,457.07
  4. Step 4: Simplify right side
    72,288.17x = 4,035,902,327.80
  5. Step 5: Solve for x
    x = 4,035,902,327.80/72,288.17
  6. Step 6: Final answer
    x = 55,830.75

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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.