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Finding the Fourth Proportional to 60,021.63, 90,088.94 and 30,460.68

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Solution

The fourth proportional to 60,021.63, 90,088.94 and 30,460.68 is: 45,719.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,021.63 : 90,088.94 = 30,460.68 : x
  2. Step 2: Convert to fraction form
    60,021.63/90,088.94 = 30,460.68/x
  3. Step 3: Cross multiply
    60,021.63x = 90,088.94 × 30,460.68
  4. Step 4: Simplify right side
    60,021.63x = 2,744,170,449.03
  5. Step 5: Solve for x
    x = 2,744,170,449.03/60,021.63
  6. Step 6: Final answer
    x = 45,719.69

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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.