Home / 75,046.80-103,567.05-42,780.84

Finding the Fourth Proportional to 75,046.80, 103,567.05 and 42,780.84

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Solution

The fourth proportional to 75,046.80, 103,567.05 and 42,780.84 is: 59,038.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,046.80 : 103,567.05 = 42,780.84 : x
  2. Step 2: Convert to fraction form
    75,046.80/103,567.05 = 42,780.84/x
  3. Step 3: Cross multiply
    75,046.80x = 103,567.05 × 42,780.84
  4. Step 4: Simplify right side
    75,046.80x = 4,430,685,395.32
  5. Step 5: Solve for x
    x = 4,430,685,395.32/75,046.80
  6. Step 6: Final answer
    x = 59,038.96

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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.