Home / 287,701.37-431,536.34-88,021.77

Finding the Fourth Proportional to 287,701.37, 431,536.34 and 88,021.77

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Solution

The fourth proportional to 287,701.37, 431,536.34 and 88,021.77 is: 132,027.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,701.37 : 431,536.34 = 88,021.77 : x
  2. Step 2: Convert to fraction form
    287,701.37/431,536.34 = 88,021.77/x
  3. Step 3: Cross multiply
    287,701.37x = 431,536.34 × 88,021.77
  4. Step 4: Simplify right side
    287,701.37x = 37,984,592,026.01
  5. Step 5: Solve for x
    x = 37,984,592,026.01/287,701.37
  6. Step 6: Final answer
    x = 132,027.85

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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.