Home / 75,045.96-103,553.28-42,784.74

Finding the Fourth Proportional to 75,045.96, 103,553.28 and 42,784.74

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Solution

The fourth proportional to 75,045.96, 103,553.28 and 42,784.74 is: 59,037.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,045.96 : 103,553.28 = 42,784.74 : x
  2. Step 2: Convert to fraction form
    75,045.96/103,553.28 = 42,784.74/x
  3. Step 3: Cross multiply
    75,045.96x = 103,553.28 × 42,784.74
  4. Step 4: Simplify right side
    75,045.96x = 4,430,500,160.95
  5. Step 5: Solve for x
    x = 4,430,500,160.95/75,045.96
  6. Step 6: Final answer
    x = 59,037.16

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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.