Home / 45,397.20-68,095.80-13,807.20

Finding the Fourth Proportional to 45,397.20, 68,095.80 and 13,807.20

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Solution

The fourth proportional to 45,397.20, 68,095.80 and 13,807.20 is: 20,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,397.20 : 68,095.80 = 13,807.20 : x
  2. Step 2: Convert to fraction form
    45,397.20/68,095.80 = 13,807.20/x
  3. Step 3: Cross multiply
    45,397.20x = 68,095.80 × 13,807.20
  4. Step 4: Simplify right side
    45,397.20x = 940,212,329.76
  5. Step 5: Solve for x
    x = 940,212,329.76/45,397.20
  6. Step 6: Final answer
    x = 20,710.80

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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.