Home / 98,942.04-136,543.50-56,499.80

Finding the Fourth Proportional to 98,942.04, 136,543.50 and 56,499.80

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Solution

The fourth proportional to 98,942.04, 136,543.50 and 56,499.80 is: 77,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,942.04 : 136,543.50 = 56,499.80 : x
  2. Step 2: Convert to fraction form
    98,942.04/136,543.50 = 56,499.80/x
  3. Step 3: Cross multiply
    98,942.04x = 136,543.50 × 56,499.80
  4. Step 4: Simplify right side
    98,942.04x = 7,714,680,441.30
  5. Step 5: Solve for x
    x = 7,714,680,441.30/98,942.04
  6. Step 6: Final answer
    x = 77,971.71

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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.