Home / 72,457.92-99,987.51-40,626.12

Finding the Fourth Proportional to 72,457.92, 99,987.51 and 40,626.12

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Solution

The fourth proportional to 72,457.92, 99,987.51 and 40,626.12 is: 56,061.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,457.92 : 99,987.51 = 40,626.12 : x
  2. Step 2: Convert to fraction form
    72,457.92/99,987.51 = 40,626.12/x
  3. Step 3: Cross multiply
    72,457.92x = 99,987.51 × 40,626.12
  4. Step 4: Simplify right side
    72,457.92x = 4,062,104,579.76
  5. Step 5: Solve for x
    x = 4,062,104,579.76/72,457.92
  6. Step 6: Final answer
    x = 56,061.57

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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.