Home / 74,423.17-102,703.56-40,431.39

Finding the Fourth Proportional to 74,423.17, 102,703.56 and 40,431.39

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Solution

The fourth proportional to 74,423.17, 102,703.56 and 40,431.39 is: 55,795.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,423.17 : 102,703.56 = 40,431.39 : x
  2. Step 2: Convert to fraction form
    74,423.17/102,703.56 = 40,431.39/x
  3. Step 3: Cross multiply
    74,423.17x = 102,703.56 × 40,431.39
  4. Step 4: Simplify right side
    74,423.17x = 4,152,447,688.75
  5. Step 5: Solve for x
    x = 4,152,447,688.75/74,423.17
  6. Step 6: Final answer
    x = 55,795.09

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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.