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Finding the Fourth Proportional to 88,009.62, 121,426.74 and 53,983.14

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Solution

The fourth proportional to 88,009.62, 121,426.74 and 53,983.14 is: 74,480.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,009.62 : 121,426.74 = 53,983.14 : x
  2. Step 2: Convert to fraction form
    88,009.62/121,426.74 = 53,983.14/x
  3. Step 3: Cross multiply
    88,009.62x = 121,426.74 × 53,983.14
  4. Step 4: Simplify right side
    88,009.62x = 6,554,996,705.16
  5. Step 5: Solve for x
    x = 6,554,996,705.16/88,009.62
  6. Step 6: Final answer
    x = 74,480.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.