Home / 65,621.23-98,447.49-21,248

Finding the Fourth Proportional to 65,621.23, 98,447.49 and 21,248

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Solution

The fourth proportional to 65,621.23, 98,447.49 and 21,248 is: 31,877.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,621.23 : 98,447.49 = 21,248 : x
  2. Step 2: Convert to fraction form
    65,621.23/98,447.49 = 21,248/x
  3. Step 3: Cross multiply
    65,621.23x = 98,447.49 × 21,248
  4. Step 4: Simplify right side
    65,621.23x = 2,091,812,267.52
  5. Step 5: Solve for x
    x = 2,091,812,267.52/65,621.23
  6. Step 6: Final answer
    x = 31,877.07

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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.