Home / 75,045.64-103,505.30-52,377.38

Finding the Fourth Proportional to 75,045.64, 103,505.30 and 52,377.38

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Solution

The fourth proportional to 75,045.64, 103,505.30 and 52,377.38 is: 72,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,045.64 : 103,505.30 = 52,377.38 : x
  2. Step 2: Convert to fraction form
    75,045.64/103,505.30 = 52,377.38/x
  3. Step 3: Cross multiply
    75,045.64x = 103,505.30 × 52,377.38
  4. Step 4: Simplify right side
    75,045.64x = 5,421,336,430.11
  5. Step 5: Solve for x
    x = 5,421,336,430.11/75,045.64
  6. Step 6: Final answer
    x = 72,240.52

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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.