Home / 86,051.32-118,703.01-79,962.42

Finding the Fourth Proportional to 86,051.32, 118,703.01 and 79,962.42

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Solution

The fourth proportional to 86,051.32, 118,703.01 and 79,962.42 is: 110,303.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,051.32 : 118,703.01 = 79,962.42 : x
  2. Step 2: Convert to fraction form
    86,051.32/118,703.01 = 79,962.42/x
  3. Step 3: Cross multiply
    86,051.32x = 118,703.01 × 79,962.42
  4. Step 4: Simplify right side
    86,051.32x = 9,491,779,940.88
  5. Step 5: Solve for x
    x = 9,491,779,940.88/86,051.32
  6. Step 6: Final answer
    x = 110,303.71

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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.