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Finding the Fourth Proportional to 60,408.80, 90,440.40 and 37,080.80

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Solution

The fourth proportional to 60,408.80, 90,440.40 and 37,080.80 is: 55,515.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,408.80 : 90,440.40 = 37,080.80 : x
  2. Step 2: Convert to fraction form
    60,408.80/90,440.40 = 37,080.80/x
  3. Step 3: Cross multiply
    60,408.80x = 90,440.40 × 37,080.80
  4. Step 4: Simplify right side
    60,408.80x = 3,353,602,384.32
  5. Step 5: Solve for x
    x = 3,353,602,384.32/60,408.80
  6. Step 6: Final answer
    x = 55,515.13

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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.