Home / 65,009.05-89,652.46-49,902.35

Finding the Fourth Proportional to 65,009.05, 89,652.46 and 49,902.35

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Solution

The fourth proportional to 65,009.05, 89,652.46 and 49,902.35 is: 68,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,009.05 : 89,652.46 = 49,902.35 : x
  2. Step 2: Convert to fraction form
    65,009.05/89,652.46 = 49,902.35/x
  3. Step 3: Cross multiply
    65,009.05x = 89,652.46 × 49,902.35
  4. Step 4: Simplify right side
    65,009.05x = 4,473,868,437.28
  5. Step 5: Solve for x
    x = 4,473,868,437.28/65,009.05
  6. Step 6: Final answer
    x = 68,819.16

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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.