Home / 70,140.54-96,790.23-39,921.06

Finding the Fourth Proportional to 70,140.54, 96,790.23 and 39,921.06

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Solution

The fourth proportional to 70,140.54, 96,790.23 and 39,921.06 is: 55,088.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,140.54 : 96,790.23 = 39,921.06 : x
  2. Step 2: Convert to fraction form
    70,140.54/96,790.23 = 39,921.06/x
  3. Step 3: Cross multiply
    70,140.54x = 96,790.23 × 39,921.06
  4. Step 4: Simplify right side
    70,140.54x = 3,863,968,579.24
  5. Step 5: Solve for x
    x = 3,863,968,579.24/70,140.54
  6. Step 6: Final answer
    x = 55,088.95

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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.