Home / 80,526.12-120,810.02-30,607.08

Finding the Fourth Proportional to 80,526.12, 120,810.02 and 30,607.08

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Solution

The fourth proportional to 80,526.12, 120,810.02 and 30,607.08 is: 45,918.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,526.12 : 120,810.02 = 30,607.08 : x
  2. Step 2: Convert to fraction form
    80,526.12/120,810.02 = 30,607.08/x
  3. Step 3: Cross multiply
    80,526.12x = 120,810.02 × 30,607.08
  4. Step 4: Simplify right side
    80,526.12x = 3,697,641,946.94
  5. Step 5: Solve for x
    x = 3,697,641,946.94/80,526.12
  6. Step 6: Final answer
    x = 45,918.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.