Home / 74,370.13-102,630.77-40,836.13

Finding the Fourth Proportional to 74,370.13, 102,630.77 and 40,836.13

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Solution

The fourth proportional to 74,370.13, 102,630.77 and 40,836.13 is: 56,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,370.13 : 102,630.77 = 40,836.13 : x
  2. Step 2: Convert to fraction form
    74,370.13/102,630.77 = 40,836.13/x
  3. Step 3: Cross multiply
    74,370.13x = 102,630.77 × 40,836.13
  4. Step 4: Simplify right side
    74,370.13x = 4,191,043,465.72
  5. Step 5: Solve for x
    x = 4,191,043,465.72/74,370.13
  6. Step 6: Final answer
    x = 56,353.85

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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.