Home / 65,928.40-90,981.36-35,713.84

Finding the Fourth Proportional to 65,928.40, 90,981.36 and 35,713.84

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Solution

The fourth proportional to 65,928.40, 90,981.36 and 35,713.84 is: 49,285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,928.40 : 90,981.36 = 35,713.84 : x
  2. Step 2: Convert to fraction form
    65,928.40/90,981.36 = 35,713.84/x
  3. Step 3: Cross multiply
    65,928.40x = 90,981.36 × 35,713.84
  4. Step 4: Simplify right side
    65,928.40x = 3,249,293,734.02
  5. Step 5: Solve for x
    x = 3,249,293,734.02/65,928.40
  6. Step 6: Final answer
    x = 49,285.19

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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.