Home / 56,695.90-85,007.40-23,429.20

Finding the Fourth Proportional to 56,695.90, 85,007.40 and 23,429.20

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Solution

The fourth proportional to 56,695.90, 85,007.40 and 23,429.20 is: 35,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,695.90 : 85,007.40 = 23,429.20 : x
  2. Step 2: Convert to fraction form
    56,695.90/85,007.40 = 23,429.20/x
  3. Step 3: Cross multiply
    56,695.90x = 85,007.40 × 23,429.20
  4. Step 4: Simplify right side
    56,695.90x = 1,991,655,376.08
  5. Step 5: Solve for x
    x = 1,991,655,376.08/56,695.90
  6. Step 6: Final answer
    x = 35,128.74

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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.