Home / 51,430.22-77,174.47-20,287.34

Finding the Fourth Proportional to 51,430.22, 77,174.47 and 20,287.34

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Solution

The fourth proportional to 51,430.22, 77,174.47 and 20,287.34 is: 30,442.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,430.22 : 77,174.47 = 20,287.34 : x
  2. Step 2: Convert to fraction form
    51,430.22/77,174.47 = 20,287.34/x
  3. Step 3: Cross multiply
    51,430.22x = 77,174.47 × 20,287.34
  4. Step 4: Simplify right side
    51,430.22x = 1,565,664,712.21
  5. Step 5: Solve for x
    x = 1,565,664,712.21/51,430.22
  6. Step 6: Final answer
    x = 30,442.50

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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.