Home / 74,276.12-102,501.18-40,742.36

Finding the Fourth Proportional to 74,276.12, 102,501.18 and 40,742.36

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Solution

The fourth proportional to 74,276.12, 102,501.18 and 40,742.36 is: 56,224.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,276.12 : 102,501.18 = 40,742.36 : x
  2. Step 2: Convert to fraction form
    74,276.12/102,501.18 = 40,742.36/x
  3. Step 3: Cross multiply
    74,276.12x = 102,501.18 × 40,742.36
  4. Step 4: Simplify right side
    74,276.12x = 4,176,139,975.98
  5. Step 5: Solve for x
    x = 4,176,139,975.98/74,276.12
  6. Step 6: Final answer
    x = 56,224.53

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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.