Home / 86,724.72-119,681.88-47,963.76

Finding the Fourth Proportional to 86,724.72, 119,681.88 and 47,963.76

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Solution

The fourth proportional to 86,724.72, 119,681.88 and 47,963.76 is: 66,190.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,724.72 : 119,681.88 = 47,963.76 : x
  2. Step 2: Convert to fraction form
    86,724.72/119,681.88 = 47,963.76/x
  3. Step 3: Cross multiply
    86,724.72x = 119,681.88 × 47,963.76
  4. Step 4: Simplify right side
    86,724.72x = 5,740,392,968.67
  5. Step 5: Solve for x
    x = 5,740,392,968.67/86,724.72
  6. Step 6: Final answer
    x = 66,190.97

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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.