Home / 64,283.12-88,719.54-38,790.80

Finding the Fourth Proportional to 64,283.12, 88,719.54 and 38,790.80

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Solution

The fourth proportional to 64,283.12, 88,719.54 and 38,790.80 is: 53,536.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,283.12 : 88,719.54 = 38,790.80 : x
  2. Step 2: Convert to fraction form
    64,283.12/88,719.54 = 38,790.80/x
  3. Step 3: Cross multiply
    64,283.12x = 88,719.54 × 38,790.80
  4. Step 4: Simplify right side
    64,283.12x = 3,441,501,932.23
  5. Step 5: Solve for x
    x = 3,441,501,932.23/64,283.12
  6. Step 6: Final answer
    x = 53,536.64

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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.