Home / 42,166.80-63,250.20-39,870.45

Finding the Fourth Proportional to 42,166.80, 63,250.20 and 39,870.45

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Solution

The fourth proportional to 42,166.80, 63,250.20 and 39,870.45 is: 59,805.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,166.80 : 63,250.20 = 39,870.45 : x
  2. Step 2: Convert to fraction form
    42,166.80/63,250.20 = 39,870.45/x
  3. Step 3: Cross multiply
    42,166.80x = 63,250.20 × 39,870.45
  4. Step 4: Simplify right side
    42,166.80x = 2,521,813,936.59
  5. Step 5: Solve for x
    x = 2,521,813,936.59/42,166.80
  6. Step 6: Final answer
    x = 59,805.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.