Home / 79,770.15-110,119.10-56,814.75

Finding the Fourth Proportional to 79,770.15, 110,119.10 and 56,814.75

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Solution

The fourth proportional to 79,770.15, 110,119.10 and 56,814.75 is: 78,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,770.15 : 110,119.10 = 56,814.75 : x
  2. Step 2: Convert to fraction form
    79,770.15/110,119.10 = 56,814.75/x
  3. Step 3: Cross multiply
    79,770.15x = 110,119.10 × 56,814.75
  4. Step 4: Simplify right side
    79,770.15x = 6,256,388,852.65
  5. Step 5: Solve for x
    x = 6,256,388,852.65/79,770.15
  6. Step 6: Final answer
    x = 78,430.20

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1.5x scale

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.