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Finding the Fourth Proportional to 60,099.80, 90,193.98 and 28,509.95

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Solution

The fourth proportional to 60,099.80, 90,193.98 and 28,509.95 is: 42,785.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,099.80 : 90,193.98 = 28,509.95 : x
  2. Step 2: Convert to fraction form
    60,099.80/90,193.98 = 28,509.95/x
  3. Step 3: Cross multiply
    60,099.80x = 90,193.98 × 28,509.95
  4. Step 4: Simplify right side
    60,099.80x = 2,571,425,409.13
  5. Step 5: Solve for x
    x = 2,571,425,409.13/60,099.80
  6. Step 6: Final answer
    x = 42,785.93

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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.