Home / 39,903.20-59,725.20-31,090.40

Finding the Fourth Proportional to 39,903.20, 59,725.20 and 31,090.40

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Solution

The fourth proportional to 39,903.20, 59,725.20 and 31,090.40 is: 46,534.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,903.20 : 59,725.20 = 31,090.40 : x
  2. Step 2: Convert to fraction form
    39,903.20/59,725.20 = 31,090.40/x
  3. Step 3: Cross multiply
    39,903.20x = 59,725.20 × 31,090.40
  4. Step 4: Simplify right side
    39,903.20x = 1,856,880,358.08
  5. Step 5: Solve for x
    x = 1,856,880,358.08/39,903.20
  6. Step 6: Final answer
    x = 46,534.62

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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.