Home / 81,000.18-121,518.02-24,844.50

Finding the Fourth Proportional to 81,000.18, 121,518.02 and 24,844.50

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Solution

The fourth proportional to 81,000.18, 121,518.02 and 24,844.50 is: 37,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,000.18 : 121,518.02 = 24,844.50 : x
  2. Step 2: Convert to fraction form
    81,000.18/121,518.02 = 24,844.50/x
  3. Step 3: Cross multiply
    81,000.18x = 121,518.02 × 24,844.50
  4. Step 4: Simplify right side
    81,000.18x = 3,019,054,510.00
  5. Step 5: Solve for x
    x = 3,019,054,510.00/81,000.18
  6. Step 6: Final answer
    x = 37,272.20

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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.