Home / 77,965.33-107,567.60-47,719.12

Finding the Fourth Proportional to 77,965.33, 107,567.60 and 47,719.12

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Solution

The fourth proportional to 77,965.33, 107,567.60 and 47,719.12 is: 65,837.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,965.33 : 107,567.60 = 47,719.12 : x
  2. Step 2: Convert to fraction form
    77,965.33/107,567.60 = 47,719.12/x
  3. Step 3: Cross multiply
    77,965.33x = 107,567.60 × 47,719.12
  4. Step 4: Simplify right side
    77,965.33x = 5,133,031,362.13
  5. Step 5: Solve for x
    x = 5,133,031,362.13/77,965.33
  6. Step 6: Final answer
    x = 65,837.36

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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.