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Finding the Fourth Proportional to 40,603.35, 60,904.35 and 12,140.37

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Solution

The fourth proportional to 40,603.35, 60,904.35 and 12,140.37 is: 18,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,603.35 : 60,904.35 = 12,140.37 : x
  2. Step 2: Convert to fraction form
    40,603.35/60,904.35 = 12,140.37/x
  3. Step 3: Cross multiply
    40,603.35x = 60,904.35 × 12,140.37
  4. Step 4: Simplify right side
    40,603.35x = 739,401,343.61
  5. Step 5: Solve for x
    x = 739,401,343.61/40,603.35
  6. Step 6: Final answer
    x = 18,210.35

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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.