Home / 45,785.40-68,656.64-17,718.71

Finding the Fourth Proportional to 45,785.40, 68,656.64 and 17,718.71

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Solution

The fourth proportional to 45,785.40, 68,656.64 and 17,718.71 is: 26,569.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,785.40 : 68,656.64 = 17,718.71 : x
  2. Step 2: Convert to fraction form
    45,785.40/68,656.64 = 17,718.71/x
  3. Step 3: Cross multiply
    45,785.40x = 68,656.64 × 17,718.71
  4. Step 4: Simplify right side
    45,785.40x = 1,216,506,661.86
  5. Step 5: Solve for x
    x = 1,216,506,661.86/45,785.40
  6. Step 6: Final answer
    x = 26,569.75

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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.