Home / 75,302.21-112,886.19-28,587.89

Finding the Fourth Proportional to 75,302.21, 112,886.19 and 28,587.89

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Solution

The fourth proportional to 75,302.21, 112,886.19 and 28,587.89 is: 42,856.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,302.21 : 112,886.19 = 28,587.89 : x
  2. Step 2: Convert to fraction form
    75,302.21/112,886.19 = 28,587.89/x
  3. Step 3: Cross multiply
    75,302.21x = 112,886.19 × 28,587.89
  4. Step 4: Simplify right side
    75,302.21x = 3,227,177,417.81
  5. Step 5: Solve for x
    x = 3,227,177,417.81/75,302.21
  6. Step 6: Final answer
    x = 42,856.35

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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.