Home / 74,357.45-102,613.29-40,365.90

Finding the Fourth Proportional to 74,357.45, 102,613.29 and 40,365.90

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Solution

The fourth proportional to 74,357.45, 102,613.29 and 40,365.90 is: 55,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,357.45 : 102,613.29 = 40,365.90 : x
  2. Step 2: Convert to fraction form
    74,357.45/102,613.29 = 40,365.90/x
  3. Step 3: Cross multiply
    74,357.45x = 102,613.29 × 40,365.90
  4. Step 4: Simplify right side
    74,357.45x = 4,142,077,802.81
  5. Step 5: Solve for x
    x = 4,142,077,802.81/74,357.45
  6. Step 6: Final answer
    x = 55,704.95

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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.