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Finding the Fourth Proportional to 63,148.97, 94,656.81 and 21,017.72

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Solution

The fourth proportional to 63,148.97, 94,656.81 and 21,017.72 is: 31,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,148.97 : 94,656.81 = 21,017.72 : x
  2. Step 2: Convert to fraction form
    63,148.97/94,656.81 = 21,017.72/x
  3. Step 3: Cross multiply
    63,148.97x = 94,656.81 × 21,017.72
  4. Step 4: Simplify right side
    63,148.97x = 1,989,470,328.67
  5. Step 5: Solve for x
    x = 1,989,470,328.67/63,148.97
  6. Step 6: Final answer
    x = 31,504.40

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1.5x scale

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.