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Finding the Fourth Proportional to 60,590.98, 90,928 and 21,148.10

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Solution

The fourth proportional to 60,590.98, 90,928 and 21,148.10 is: 31,736.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,590.98 : 90,928 = 21,148.10 : x
  2. Step 2: Convert to fraction form
    60,590.98/90,928 = 21,148.10/x
  3. Step 3: Cross multiply
    60,590.98x = 90,928 × 21,148.10
  4. Step 4: Simplify right side
    60,590.98x = 1,922,953,982.16
  5. Step 5: Solve for x
    x = 1,922,953,982.16/60,590.98
  6. Step 6: Final answer
    x = 31,736.64

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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.