Home / 74,428.23-102,712.86-40,436.37

Finding the Fourth Proportional to 74,428.23, 102,712.86 and 40,436.37

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Solution

The fourth proportional to 74,428.23, 102,712.86 and 40,436.37 is: 55,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,428.23 : 102,712.86 = 40,436.37 : x
  2. Step 2: Convert to fraction form
    74,428.23/102,712.86 = 40,436.37/x
  3. Step 3: Cross multiply
    74,428.23x = 102,712.86 × 40,436.37
  4. Step 4: Simplify right side
    74,428.23x = 4,153,335,210.72
  5. Step 5: Solve for x
    x = 4,153,335,210.72/74,428.23
  6. Step 6: Final answer
    x = 55,803.22

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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.