Home / 80,848.48-121,328.20-28,258

Finding the Fourth Proportional to 80,848.48, 121,328.20 and 28,258

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Solution

The fourth proportional to 80,848.48, 121,328.20 and 28,258 is: 42,406.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,848.48 : 121,328.20 = 28,258 : x
  2. Step 2: Convert to fraction form
    80,848.48/121,328.20 = 28,258/x
  3. Step 3: Cross multiply
    80,848.48x = 121,328.20 × 28,258
  4. Step 4: Simplify right side
    80,848.48x = 3,428,492,275.60
  5. Step 5: Solve for x
    x = 3,428,492,275.60/80,848.48
  6. Step 6: Final answer
    x = 42,406.39

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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.