Home / 64,419.36-88,899.60-38,922.16

Finding the Fourth Proportional to 64,419.36, 88,899.60 and 38,922.16

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Solution

The fourth proportional to 64,419.36, 88,899.60 and 38,922.16 is: 53,713.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,419.36 : 88,899.60 = 38,922.16 : x
  2. Step 2: Convert to fraction form
    64,419.36/88,899.60 = 38,922.16/x
  3. Step 3: Cross multiply
    64,419.36x = 88,899.60 × 38,922.16
  4. Step 4: Simplify right side
    64,419.36x = 3,460,164,455.14
  5. Step 5: Solve for x
    x = 3,460,164,455.14/64,419.36
  6. Step 6: Final answer
    x = 53,713.11

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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.