Home / 39,539.80-59,223.30-30,705.40

Finding the Fourth Proportional to 39,539.80, 59,223.30 and 30,705.40

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Solution

The fourth proportional to 39,539.80, 59,223.30 and 30,705.40 is: 45,991.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,539.80 : 59,223.30 = 30,705.40 : x
  2. Step 2: Convert to fraction form
    39,539.80/59,223.30 = 30,705.40/x
  3. Step 3: Cross multiply
    39,539.80x = 59,223.30 × 30,705.40
  4. Step 4: Simplify right side
    39,539.80x = 1,818,475,115.82
  5. Step 5: Solve for x
    x = 1,818,475,115.82/39,539.80
  6. Step 6: Final answer
    x = 45,991.00

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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.