Home / 75,170.28-103,740.90-42,897.45

Finding the Fourth Proportional to 75,170.28, 103,740.90 and 42,897.45

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Solution

The fourth proportional to 75,170.28, 103,740.90 and 42,897.45 is: 59,201.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,170.28 : 103,740.90 = 42,897.45 : x
  2. Step 2: Convert to fraction form
    75,170.28/103,740.90 = 42,897.45/x
  3. Step 3: Cross multiply
    75,170.28x = 103,740.90 × 42,897.45
  4. Step 4: Simplify right side
    75,170.28x = 4,450,220,070.71
  5. Step 5: Solve for x
    x = 4,450,220,070.71/75,170.28
  6. Step 6: Final answer
    x = 59,201.86

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1.5x scale

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.