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Finding the Fourth Proportional to 60,018.99, 90,032.87 and 20,575.77

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Solution

The fourth proportional to 60,018.99, 90,032.87 and 20,575.77 is: 30,865.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,018.99 : 90,032.87 = 20,575.77 : x
  2. Step 2: Convert to fraction form
    60,018.99/90,032.87 = 20,575.77/x
  3. Step 3: Cross multiply
    60,018.99x = 90,032.87 × 20,575.77
  4. Step 4: Simplify right side
    60,018.99x = 1,852,495,522.68
  5. Step 5: Solve for x
    x = 1,852,495,522.68/60,018.99
  6. Step 6: Final answer
    x = 30,865.16

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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.