Home / 71,448.40-98,598.63-39,616.48

Finding the Fourth Proportional to 71,448.40, 98,598.63 and 39,616.48

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Solution

The fourth proportional to 71,448.40, 98,598.63 and 39,616.48 is: 54,670.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,448.40 : 98,598.63 = 39,616.48 : x
  2. Step 2: Convert to fraction form
    71,448.40/98,598.63 = 39,616.48/x
  3. Step 3: Cross multiply
    71,448.40x = 98,598.63 × 39,616.48
  4. Step 4: Simplify right side
    71,448.40x = 3,906,130,653.42
  5. Step 5: Solve for x
    x = 3,906,130,653.42/71,448.40
  6. Step 6: Final answer
    x = 54,670.65

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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.