Home / 70,928.12-97,880.78-39,097.55

Finding the Fourth Proportional to 70,928.12, 97,880.78 and 39,097.55

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Solution

The fourth proportional to 70,928.12, 97,880.78 and 39,097.55 is: 53,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,928.12 : 97,880.78 = 39,097.55 : x
  2. Step 2: Convert to fraction form
    70,928.12/97,880.78 = 39,097.55/x
  3. Step 3: Cross multiply
    70,928.12x = 97,880.78 × 39,097.55
  4. Step 4: Simplify right side
    70,928.12x = 3,826,898,005.20
  5. Step 5: Solve for x
    x = 3,826,898,005.20/70,928.12
  6. Step 6: Final answer
    x = 53,954.60

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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.