Home / 75,045.41-103,565.11-42,779.43

Finding the Fourth Proportional to 75,045.41, 103,565.11 and 42,779.43

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Solution

The fourth proportional to 75,045.41, 103,565.11 and 42,779.43 is: 59,037.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,045.41 : 103,565.11 = 42,779.43 : x
  2. Step 2: Convert to fraction form
    75,045.41/103,565.11 = 42,779.43/x
  3. Step 3: Cross multiply
    75,045.41x = 103,565.11 × 42,779.43
  4. Step 4: Simplify right side
    75,045.41x = 4,430,456,266.74
  5. Step 5: Solve for x
    x = 4,430,456,266.74/75,045.41
  6. Step 6: Final answer
    x = 59,037.01

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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.