Home / 74,342.67-102,590.60-40,349.55

Finding the Fourth Proportional to 74,342.67, 102,590.60 and 40,349.55

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Solution

The fourth proportional to 74,342.67, 102,590.60 and 40,349.55 is: 55,681.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,342.67 : 102,590.60 = 40,349.55 : x
  2. Step 2: Convert to fraction form
    74,342.67/102,590.60 = 40,349.55/x
  3. Step 3: Cross multiply
    74,342.67x = 102,590.60 × 40,349.55
  4. Step 4: Simplify right side
    74,342.67x = 4,139,484,342.48
  5. Step 5: Solve for x
    x = 4,139,484,342.48/74,342.67
  6. Step 6: Final answer
    x = 55,681.14

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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.