Home / 86,954.64-119,987.28-48,708.72

Finding the Fourth Proportional to 86,954.64, 119,987.28 and 48,708.72

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Solution

The fourth proportional to 86,954.64, 119,987.28 and 48,708.72 is: 67,212.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,954.64 : 119,987.28 = 48,708.72 : x
  2. Step 2: Convert to fraction form
    86,954.64/119,987.28 = 48,708.72/x
  3. Step 3: Cross multiply
    86,954.64x = 119,987.28 × 48,708.72
  4. Step 4: Simplify right side
    86,954.64x = 5,844,426,825.08
  5. Step 5: Solve for x
    x = 5,844,426,825.08/86,954.64
  6. Step 6: Final answer
    x = 67,212.36

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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.