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Finding the Fourth Proportional to 82,510.40, 123,765.60 and 56,266.40

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Solution

The fourth proportional to 82,510.40, 123,765.60 and 56,266.40 is: 84,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,510.40 : 123,765.60 = 56,266.40 : x
  2. Step 2: Convert to fraction form
    82,510.40/123,765.60 = 56,266.40/x
  3. Step 3: Cross multiply
    82,510.40x = 123,765.60 × 56,266.40
  4. Step 4: Simplify right side
    82,510.40x = 6,963,844,755.84
  5. Step 5: Solve for x
    x = 6,963,844,755.84/82,510.40
  6. Step 6: Final answer
    x = 84,399.60

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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.