Home / 74,322.86-102,565.23-40,331.10

Finding the Fourth Proportional to 74,322.86, 102,565.23 and 40,331.10

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Solution

The fourth proportional to 74,322.86, 102,565.23 and 40,331.10 is: 55,656.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,322.86 : 102,565.23 = 40,331.10 : x
  2. Step 2: Convert to fraction form
    74,322.86/102,565.23 = 40,331.10/x
  3. Step 3: Cross multiply
    74,322.86x = 102,565.23 × 40,331.10
  4. Step 4: Simplify right side
    74,322.86x = 4,136,568,547.65
  5. Step 5: Solve for x
    x = 4,136,568,547.65/74,322.86
  6. Step 6: Final answer
    x = 55,656.75

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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.