Home / 70,342.19-97,077.77-40,120.58

Finding the Fourth Proportional to 70,342.19, 97,077.77 and 40,120.58

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Solution

The fourth proportional to 70,342.19, 97,077.77 and 40,120.58 is: 55,369.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,342.19 : 97,077.77 = 40,120.58 : x
  2. Step 2: Convert to fraction form
    70,342.19/97,077.77 = 40,120.58/x
  3. Step 3: Cross multiply
    70,342.19x = 97,077.77 × 40,120.58
  4. Step 4: Simplify right side
    70,342.19x = 3,894,815,751.51
  5. Step 5: Solve for x
    x = 3,894,815,751.51/70,342.19
  6. Step 6: Final answer
    x = 55,369.56

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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.