Home / 77,337.48-106,720.64-45,500.20

Finding the Fourth Proportional to 77,337.48, 106,720.64 and 45,500.20

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Solution

The fourth proportional to 77,337.48, 106,720.64 and 45,500.20 is: 62,787.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,337.48 : 106,720.64 = 45,500.20 : x
  2. Step 2: Convert to fraction form
    77,337.48/106,720.64 = 45,500.20/x
  3. Step 3: Cross multiply
    77,337.48x = 106,720.64 × 45,500.20
  4. Step 4: Simplify right side
    77,337.48x = 4,855,810,464.13
  5. Step 5: Solve for x
    x = 4,855,810,464.13/77,337.48
  6. Step 6: Final answer
    x = 62,787.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.