Home / 75,785.03-113,603.28-64,565.72

Finding the Fourth Proportional to 75,785.03, 113,603.28 and 64,565.72

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Solution

The fourth proportional to 75,785.03, 113,603.28 and 64,565.72 is: 96,785.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,785.03 : 113,603.28 = 64,565.72 : x
  2. Step 2: Convert to fraction form
    75,785.03/113,603.28 = 64,565.72/x
  3. Step 3: Cross multiply
    75,785.03x = 113,603.28 × 64,565.72
  4. Step 4: Simplify right side
    75,785.03x = 7,334,877,567.56
  5. Step 5: Solve for x
    x = 7,334,877,567.56/75,785.03
  6. Step 6: Final answer
    x = 96,785.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.