Home / 39,913.60-59,870.40-29,999.20

Finding the Fourth Proportional to 39,913.60, 59,870.40 and 29,999.20

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Solution

The fourth proportional to 39,913.60, 59,870.40 and 29,999.20 is: 44,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,913.60 : 59,870.40 = 29,999.20 : x
  2. Step 2: Convert to fraction form
    39,913.60/59,870.40 = 29,999.20/x
  3. Step 3: Cross multiply
    39,913.60x = 59,870.40 × 29,999.20
  4. Step 4: Simplify right side
    39,913.60x = 1,796,064,103.68
  5. Step 5: Solve for x
    x = 1,796,064,103.68/39,913.60
  6. Step 6: Final answer
    x = 44,998.80

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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.