Home / 56,531.28-78,004.08-32,661.12

Finding the Fourth Proportional to 56,531.28, 78,004.08 and 32,661.12

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Solution

The fourth proportional to 56,531.28, 78,004.08 and 32,661.12 is: 45,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,531.28 : 78,004.08 = 32,661.12 : x
  2. Step 2: Convert to fraction form
    56,531.28/78,004.08 = 32,661.12/x
  3. Step 3: Cross multiply
    56,531.28x = 78,004.08 × 32,661.12
  4. Step 4: Simplify right side
    56,531.28x = 2,547,700,617.37
  5. Step 5: Solve for x
    x = 2,547,700,617.37/56,531.28
  6. Step 6: Final answer
    x = 45,067.10

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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.