Home / 74,345.29-102,596.58-40,353.78

Finding the Fourth Proportional to 74,345.29, 102,596.58 and 40,353.78

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Solution

The fourth proportional to 74,345.29, 102,596.58 and 40,353.78 is: 55,688.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,345.29 : 102,596.58 = 40,353.78 : x
  2. Step 2: Convert to fraction form
    74,345.29/102,596.58 = 40,353.78/x
  3. Step 3: Cross multiply
    74,345.29x = 102,596.58 × 40,353.78
  4. Step 4: Simplify right side
    74,345.29x = 4,140,159,818.07
  5. Step 5: Solve for x
    x = 4,140,159,818.07/74,345.29
  6. Step 6: Final answer
    x = 55,688.26

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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.