Home / 75,045.64-103,505.28-52,377.40

Finding the Fourth Proportional to 75,045.64, 103,505.28 and 52,377.40

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Solution

The fourth proportional to 75,045.64, 103,505.28 and 52,377.40 is: 72,240.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,045.64 : 103,505.28 = 52,377.40 : x
  2. Step 2: Convert to fraction form
    75,045.64/103,505.28 = 52,377.40/x
  3. Step 3: Cross multiply
    75,045.64x = 103,505.28 × 52,377.40
  4. Step 4: Simplify right side
    75,045.64x = 5,421,337,452.67
  5. Step 5: Solve for x
    x = 5,421,337,452.67/75,045.64
  6. Step 6: Final answer
    x = 72,240.54

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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.