Home / 74,445.45-102,739.28-42,613.59

Finding the Fourth Proportional to 74,445.45, 102,739.28 and 42,613.59

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Solution

The fourth proportional to 74,445.45, 102,739.28 and 42,613.59 is: 58,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,445.45 : 102,739.28 = 42,613.59 : x
  2. Step 2: Convert to fraction form
    74,445.45/102,739.28 = 42,613.59/x
  3. Step 3: Cross multiply
    74,445.45x = 102,739.28 × 42,613.59
  4. Step 4: Simplify right side
    74,445.45x = 4,378,089,341.75
  5. Step 5: Solve for x
    x = 4,378,089,341.75/74,445.45
  6. Step 6: Final answer
    x = 58,809.36

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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.