Home / 284,285.56-426,448.86-81,873.40

Finding the Fourth Proportional to 284,285.56, 426,448.86 and 81,873.40

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Solution

The fourth proportional to 284,285.56, 426,448.86 and 81,873.40 is: 122,816.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,285.56 : 426,448.86 = 81,873.40 : x
  2. Step 2: Convert to fraction form
    284,285.56/426,448.86 = 81,873.40/x
  3. Step 3: Cross multiply
    284,285.56x = 426,448.86 × 81,873.40
  4. Step 4: Simplify right side
    284,285.56x = 34,914,818,094.32
  5. Step 5: Solve for x
    x = 34,914,818,094.32/284,285.56
  6. Step 6: Final answer
    x = 122,816.01

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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.