Home / 98,550.81-136,001.43-56,109.51

Finding the Fourth Proportional to 98,550.81, 136,001.43 and 56,109.51

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Solution

The fourth proportional to 98,550.81, 136,001.43 and 56,109.51 is: 77,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,550.81 : 136,001.43 = 56,109.51 : x
  2. Step 2: Convert to fraction form
    98,550.81/136,001.43 = 56,109.51/x
  3. Step 3: Cross multiply
    98,550.81x = 136,001.43 × 56,109.51
  4. Step 4: Simplify right side
    98,550.81x = 7,630,973,596.60
  5. Step 5: Solve for x
    x = 7,630,973,596.60/98,550.81
  6. Step 6: Final answer
    x = 77,431.87

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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.