Home / 286,652.07-429,987.12-73,421.31

Finding the Fourth Proportional to 286,652.07, 429,987.12 and 73,421.31

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Solution

The fourth proportional to 286,652.07, 429,987.12 and 73,421.31 is: 110,134.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,652.07 : 429,987.12 = 73,421.31 : x
  2. Step 2: Convert to fraction form
    286,652.07/429,987.12 = 73,421.31/x
  3. Step 3: Cross multiply
    286,652.07x = 429,987.12 × 73,421.31
  4. Step 4: Simplify right side
    286,652.07x = 31,570,217,633.53
  5. Step 5: Solve for x
    x = 31,570,217,633.53/286,652.07
  6. Step 6: Final answer
    x = 110,134.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.