Home / 45,318.16-67,981.56-17,618.32

Finding the Fourth Proportional to 45,318.16, 67,981.56 and 17,618.32

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Solution

The fourth proportional to 45,318.16, 67,981.56 and 17,618.32 is: 26,429.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,318.16 : 67,981.56 = 17,618.32 : x
  2. Step 2: Convert to fraction form
    45,318.16/67,981.56 = 17,618.32/x
  3. Step 3: Cross multiply
    45,318.16x = 67,981.56 × 17,618.32
  4. Step 4: Simplify right side
    45,318.16x = 1,197,720,878.18
  5. Step 5: Solve for x
    x = 1,197,720,878.18/45,318.16
  6. Step 6: Final answer
    x = 26,429.16

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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.