Home / 86,928.64-119,962.02-51,120.16

Finding the Fourth Proportional to 86,928.64, 119,962.02 and 51,120.16

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Solution

The fourth proportional to 86,928.64, 119,962.02 and 51,120.16 is: 70,546.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,928.64 : 119,962.02 = 51,120.16 : x
  2. Step 2: Convert to fraction form
    86,928.64/119,962.02 = 51,120.16/x
  3. Step 3: Cross multiply
    86,928.64x = 119,962.02 × 51,120.16
  4. Step 4: Simplify right side
    86,928.64x = 6,132,477,656.32
  5. Step 5: Solve for x
    x = 6,132,477,656.32/86,928.64
  6. Step 6: Final answer
    x = 70,546.11

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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.