Home / 75,000.61-103,521.26-42,752.21

Finding the Fourth Proportional to 75,000.61, 103,521.26 and 42,752.21

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Solution

The fourth proportional to 75,000.61, 103,521.26 and 42,752.21 is: 59,009.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,000.61 : 103,521.26 = 42,752.21 : x
  2. Step 2: Convert to fraction form
    75,000.61/103,521.26 = 42,752.21/x
  3. Step 3: Cross multiply
    75,000.61x = 103,521.26 × 42,752.21
  4. Step 4: Simplify right side
    75,000.61x = 4,425,761,915.62
  5. Step 5: Solve for x
    x = 4,425,761,915.62/75,000.61
  6. Step 6: Final answer
    x = 59,009.68

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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.