Home / 50,639.36-69,882.08-27,978.35

Finding the Fourth Proportional to 50,639.36, 69,882.08 and 27,978.35

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Solution

The fourth proportional to 50,639.36, 69,882.08 and 27,978.35 is: 38,609.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,639.36 : 69,882.08 = 27,978.35 : x
  2. Step 2: Convert to fraction form
    50,639.36/69,882.08 = 27,978.35/x
  3. Step 3: Cross multiply
    50,639.36x = 69,882.08 × 27,978.35
  4. Step 4: Simplify right side
    50,639.36x = 1,955,184,803.67
  5. Step 5: Solve for x
    x = 1,955,184,803.67/50,639.36
  6. Step 6: Final answer
    x = 38,609.99

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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.