Home / 45,813.60-68,720.40-38,901.60

Finding the Fourth Proportional to 45,813.60, 68,720.40 and 38,901.60

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Solution

The fourth proportional to 45,813.60, 68,720.40 and 38,901.60 is: 58,352.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,813.60 : 68,720.40 = 38,901.60 : x
  2. Step 2: Convert to fraction form
    45,813.60/68,720.40 = 38,901.60/x
  3. Step 3: Cross multiply
    45,813.60x = 68,720.40 × 38,901.60
  4. Step 4: Simplify right side
    45,813.60x = 2,673,333,512.64
  5. Step 5: Solve for x
    x = 2,673,333,512.64/45,813.60
  6. Step 6: Final answer
    x = 58,352.40

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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.