Home / 45,335.40-68,025.45-20,393.10

Finding the Fourth Proportional to 45,335.40, 68,025.45 and 20,393.10

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Solution

The fourth proportional to 45,335.40, 68,025.45 and 20,393.10 is: 30,599.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,335.40 : 68,025.45 = 20,393.10 : x
  2. Step 2: Convert to fraction form
    45,335.40/68,025.45 = 20,393.10/x
  3. Step 3: Cross multiply
    45,335.40x = 68,025.45 × 20,393.10
  4. Step 4: Simplify right side
    45,335.40x = 1,387,249,804.40
  5. Step 5: Solve for x
    x = 1,387,249,804.40/45,335.40
  6. Step 6: Final answer
    x = 30,599.70

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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.