Home / 74,340.06-102,590.04-40,348.84

Finding the Fourth Proportional to 74,340.06, 102,590.04 and 40,348.84

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Solution

The fourth proportional to 74,340.06, 102,590.04 and 40,348.84 is: 55,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340.06 : 102,590.04 = 40,348.84 : x
  2. Step 2: Convert to fraction form
    74,340.06/102,590.04 = 40,348.84/x
  3. Step 3: Cross multiply
    74,340.06x = 102,590.04 × 40,348.84
  4. Step 4: Simplify right side
    74,340.06x = 4,139,389,109.55
  5. Step 5: Solve for x
    x = 4,139,389,109.55/74,340.06
  6. Step 6: Final answer
    x = 55,681.81

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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.