Home / 42,722.09-64,094.07-13,140.18

Finding the Fourth Proportional to 42,722.09, 64,094.07 and 13,140.18

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Solution

The fourth proportional to 42,722.09, 64,094.07 and 13,140.18 is: 19,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,722.09 : 64,094.07 = 13,140.18 : x
  2. Step 2: Convert to fraction form
    42,722.09/64,094.07 = 13,140.18/x
  3. Step 3: Cross multiply
    42,722.09x = 64,094.07 × 13,140.18
  4. Step 4: Simplify right side
    42,722.09x = 842,207,616.73
  5. Step 5: Solve for x
    x = 842,207,616.73/42,722.09
  6. Step 6: Final answer
    x = 19,713.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.