Home / 75,816.51-113,674.05-53,345.58

Finding the Fourth Proportional to 75,816.51, 113,674.05 and 53,345.58

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Solution

The fourth proportional to 75,816.51, 113,674.05 and 53,345.58 is: 79,982.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,816.51 : 113,674.05 = 53,345.58 : x
  2. Step 2: Convert to fraction form
    75,816.51/113,674.05 = 53,345.58/x
  3. Step 3: Cross multiply
    75,816.51x = 113,674.05 × 53,345.58
  4. Step 4: Simplify right side
    75,816.51x = 6,064,008,128.20
  5. Step 5: Solve for x
    x = 6,064,008,128.20/75,816.51
  6. Step 6: Final answer
    x = 79,982.69

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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.