Home / 45,510.64-68,236.68-19,208.32

Finding the Fourth Proportional to 45,510.64, 68,236.68 and 19,208.32

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Solution

The fourth proportional to 45,510.64, 68,236.68 and 19,208.32 is: 28,800.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,510.64 : 68,236.68 = 19,208.32 : x
  2. Step 2: Convert to fraction form
    45,510.64/68,236.68 = 19,208.32/x
  3. Step 3: Cross multiply
    45,510.64x = 68,236.68 × 19,208.32
  4. Step 4: Simplify right side
    45,510.64x = 1,310,711,985.18
  5. Step 5: Solve for x
    x = 1,310,711,985.18/45,510.64
  6. Step 6: Final answer
    x = 28,800.12

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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.