Home / 64,519.40-96,779.10-17,772.20

Finding the Fourth Proportional to 64,519.40, 96,779.10 and 17,772.20

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Solution

The fourth proportional to 64,519.40, 96,779.10 and 17,772.20 is: 26,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,519.40 : 96,779.10 = 17,772.20 : x
  2. Step 2: Convert to fraction form
    64,519.40/96,779.10 = 17,772.20/x
  3. Step 3: Cross multiply
    64,519.40x = 96,779.10 × 17,772.20
  4. Step 4: Simplify right side
    64,519.40x = 1,719,977,521.02
  5. Step 5: Solve for x
    x = 1,719,977,521.02/64,519.40
  6. Step 6: Final answer
    x = 26,658.30

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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.