Home / 79,530.72-119,297.02-20,364.81

Finding the Fourth Proportional to 79,530.72, 119,297.02 and 20,364.81

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Solution

The fourth proportional to 79,530.72, 119,297.02 and 20,364.81 is: 30,547.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,530.72 : 119,297.02 = 20,364.81 : x
  2. Step 2: Convert to fraction form
    79,530.72/119,297.02 = 20,364.81/x
  3. Step 3: Cross multiply
    79,530.72x = 119,297.02 × 20,364.81
  4. Step 4: Simplify right side
    79,530.72x = 2,429,461,145.87
  5. Step 5: Solve for x
    x = 2,429,461,145.87/79,530.72
  6. Step 6: Final answer
    x = 30,547.46

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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.