Home / 64,624.64-89,249.99-57,580.20

Finding the Fourth Proportional to 64,624.64, 89,249.99 and 57,580.20

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Solution

The fourth proportional to 64,624.64, 89,249.99 and 57,580.20 is: 79,521.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,624.64 : 89,249.99 = 57,580.20 : x
  2. Step 2: Convert to fraction form
    64,624.64/89,249.99 = 57,580.20/x
  3. Step 3: Cross multiply
    64,624.64x = 89,249.99 × 57,580.20
  4. Step 4: Simplify right side
    64,624.64x = 5,139,031,986.30
  5. Step 5: Solve for x
    x = 5,139,031,986.30/64,624.64
  6. Step 6: Final answer
    x = 79,521.25

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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.