Home / 98,965.45-136,590.60-56,523.98

Finding the Fourth Proportional to 98,965.45, 136,590.60 and 56,523.98

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Solution

The fourth proportional to 98,965.45, 136,590.60 and 56,523.98 is: 78,013.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,965.45 : 136,590.60 = 56,523.98 : x
  2. Step 2: Convert to fraction form
    98,965.45/136,590.60 = 56,523.98/x
  3. Step 3: Cross multiply
    98,965.45x = 136,590.60 × 56,523.98
  4. Step 4: Simplify right side
    98,965.45x = 7,720,644,127.71
  5. Step 5: Solve for x
    x = 7,720,644,127.71/98,965.45
  6. Step 6: Final answer
    x = 78,013.53

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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.