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Finding the Fourth Proportional to 56,689.57, 84,904.75 and 27,128.17

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Solution

The fourth proportional to 56,689.57, 84,904.75 and 27,128.17 is: 40,630.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,689.57 : 84,904.75 = 27,128.17 : x
  2. Step 2: Convert to fraction form
    56,689.57/84,904.75 = 27,128.17/x
  3. Step 3: Cross multiply
    56,689.57x = 84,904.75 × 27,128.17
  4. Step 4: Simplify right side
    56,689.57x = 2,303,309,931.64
  5. Step 5: Solve for x
    x = 2,303,309,931.64/56,689.57
  6. Step 6: Final answer
    x = 40,630.23

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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.