Home / 64,455-88,926.36-38,969.16

Finding the Fourth Proportional to 64,455, 88,926.36 and 38,969.16

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Solution

The fourth proportional to 64,455, 88,926.36 and 38,969.16 is: 53,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,455 : 88,926.36 = 38,969.16 : x
  2. Step 2: Convert to fraction form
    64,455/88,926.36 = 38,969.16/x
  3. Step 3: Cross multiply
    64,455x = 88,926.36 × 38,969.16
  4. Step 4: Simplify right side
    64,455x = 3,465,385,551.06
  5. Step 5: Solve for x
    x = 3,465,385,551.06/64,455
  6. Step 6: Final answer
    x = 53,764.42

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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.