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Finding the Fourth Proportional to 60,445.96, 90,685.96 and 21,007.06

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Solution

The fourth proportional to 60,445.96, 90,685.96 and 21,007.06 is: 31,516.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,445.96 : 90,685.96 = 21,007.06 : x
  2. Step 2: Convert to fraction form
    60,445.96/90,685.96 = 21,007.06/x
  3. Step 3: Cross multiply
    60,445.96x = 90,685.96 × 21,007.06
  4. Step 4: Simplify right side
    60,445.96x = 1,905,045,402.88
  5. Step 5: Solve for x
    x = 1,905,045,402.88/60,445.96
  6. Step 6: Final answer
    x = 31,516.51

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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.