Home / 74,691.37-103,072.76-40,700.10

Finding the Fourth Proportional to 74,691.37, 103,072.76 and 40,700.10

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Solution

The fourth proportional to 74,691.37, 103,072.76 and 40,700.10 is: 56,165.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,691.37 : 103,072.76 = 40,700.10 : x
  2. Step 2: Convert to fraction form
    74,691.37/103,072.76 = 40,700.10/x
  3. Step 3: Cross multiply
    74,691.37x = 103,072.76 × 40,700.10
  4. Step 4: Simplify right side
    74,691.37x = 4,195,071,639.28
  5. Step 5: Solve for x
    x = 4,195,071,639.28/74,691.37
  6. Step 6: Final answer
    x = 56,165.41

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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.