Home / 74,415.87-102,688.59-42,141.24

Finding the Fourth Proportional to 74,415.87, 102,688.59 and 42,141.24

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Solution

The fourth proportional to 74,415.87, 102,688.59 and 42,141.24 is: 58,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,415.87 : 102,688.59 = 42,141.24 : x
  2. Step 2: Convert to fraction form
    74,415.87/102,688.59 = 42,141.24/x
  3. Step 3: Cross multiply
    74,415.87x = 102,688.59 × 42,141.24
  4. Step 4: Simplify right side
    74,415.87x = 4,327,424,516.45
  5. Step 5: Solve for x
    x = 4,327,424,516.45/74,415.87
  6. Step 6: Final answer
    x = 58,151.90

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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.