Home / 74,343.06-102,592.53-40,352.76

Finding the Fourth Proportional to 74,343.06, 102,592.53 and 40,352.76

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Solution

The fourth proportional to 74,343.06, 102,592.53 and 40,352.76 is: 55,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,343.06 : 102,592.53 = 40,352.76 : x
  2. Step 2: Convert to fraction form
    74,343.06/102,592.53 = 40,352.76/x
  3. Step 3: Cross multiply
    74,343.06x = 102,592.53 × 40,352.76
  4. Step 4: Simplify right side
    74,343.06x = 4,139,891,740.88
  5. Step 5: Solve for x
    x = 4,139,891,740.88/74,343.06
  6. Step 6: Final answer
    x = 55,686.32

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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.