Home / 86,280.07-119,065.36-49,986.46

Finding the Fourth Proportional to 86,280.07, 119,065.36 and 49,986.46

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Solution

The fourth proportional to 86,280.07, 119,065.36 and 49,986.46 is: 68,980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,280.07 : 119,065.36 = 49,986.46 : x
  2. Step 2: Convert to fraction form
    86,280.07/119,065.36 = 49,986.46/x
  3. Step 3: Cross multiply
    86,280.07x = 119,065.36 × 49,986.46
  4. Step 4: Simplify right side
    86,280.07x = 5,951,655,855.03
  5. Step 5: Solve for x
    x = 5,951,655,855.03/86,280.07
  6. Step 6: Final answer
    x = 68,980.66

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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.