Home / 74,199.10-102,430.22-42,361.85

Finding the Fourth Proportional to 74,199.10, 102,430.22 and 42,361.85

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Solution

The fourth proportional to 74,199.10, 102,430.22 and 42,361.85 is: 58,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,199.10 : 102,430.22 = 42,361.85 : x
  2. Step 2: Convert to fraction form
    74,199.10/102,430.22 = 42,361.85/x
  3. Step 3: Cross multiply
    74,199.10x = 102,430.22 × 42,361.85
  4. Step 4: Simplify right side
    74,199.10x = 4,339,133,615.11
  5. Step 5: Solve for x
    x = 4,339,133,615.11/74,199.10
  6. Step 6: Final answer
    x = 58,479.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.