Home / 98,790.72-136,330.14-53,467.74

Finding the Fourth Proportional to 98,790.72, 136,330.14 and 53,467.74

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Solution

The fourth proportional to 98,790.72, 136,330.14 and 53,467.74 is: 73,784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,790.72 : 136,330.14 = 53,467.74 : x
  2. Step 2: Convert to fraction form
    98,790.72/136,330.14 = 53,467.74/x
  3. Step 3: Cross multiply
    98,790.72x = 136,330.14 × 53,467.74
  4. Step 4: Simplify right side
    98,790.72x = 7,289,264,479.68
  5. Step 5: Solve for x
    x = 7,289,264,479.68/98,790.72
  6. Step 6: Final answer
    x = 73,784.91

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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.