Home / 98,835.10-136,390.80-53,512.72

Finding the Fourth Proportional to 98,835.10, 136,390.80 and 53,512.72

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Solution

The fourth proportional to 98,835.10, 136,390.80 and 53,512.72 is: 73,846.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,835.10 : 136,390.80 = 53,512.72 : x
  2. Step 2: Convert to fraction form
    98,835.10/136,390.80 = 53,512.72/x
  3. Step 3: Cross multiply
    98,835.10x = 136,390.80 × 53,512.72
  4. Step 4: Simplify right side
    98,835.10x = 7,298,642,690.98
  5. Step 5: Solve for x
    x = 7,298,642,690.98/98,835.10
  6. Step 6: Final answer
    x = 73,846.67

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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.