Home / 79,962.02-110,814.35-78,834.50

Finding the Fourth Proportional to 79,962.02, 110,814.35 and 78,834.50

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Solution

The fourth proportional to 79,962.02, 110,814.35 and 78,834.50 is: 109,251.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,962.02 : 110,814.35 = 78,834.50 : x
  2. Step 2: Convert to fraction form
    79,962.02/110,814.35 = 78,834.50/x
  3. Step 3: Cross multiply
    79,962.02x = 110,814.35 × 78,834.50
  4. Step 4: Simplify right side
    79,962.02x = 8,735,993,875.08
  5. Step 5: Solve for x
    x = 8,735,993,875.08/79,962.02
  6. Step 6: Final answer
    x = 109,251.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.