Home / 89,390.27-133,959.65-70,587.54

Finding the Fourth Proportional to 89,390.27, 133,959.65 and 70,587.54

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Solution

The fourth proportional to 89,390.27, 133,959.65 and 70,587.54 is: 105,782.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,390.27 : 133,959.65 = 70,587.54 : x
  2. Step 2: Convert to fraction form
    89,390.27/133,959.65 = 70,587.54/x
  3. Step 3: Cross multiply
    89,390.27x = 133,959.65 × 70,587.54
  4. Step 4: Simplify right side
    89,390.27x = 9,455,881,799.82
  5. Step 5: Solve for x
    x = 9,455,881,799.82/89,390.27
  6. Step 6: Final answer
    x = 105,782.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.