Home / 76,411.23-114,605.70-20,254.74

Finding the Fourth Proportional to 76,411.23, 114,605.70 and 20,254.74

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Solution

The fourth proportional to 76,411.23, 114,605.70 and 20,254.74 is: 30,379.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,411.23 : 114,605.70 = 20,254.74 : x
  2. Step 2: Convert to fraction form
    76,411.23/114,605.70 = 20,254.74/x
  3. Step 3: Cross multiply
    76,411.23x = 114,605.70 × 20,254.74
  4. Step 4: Simplify right side
    76,411.23x = 2,321,308,656.02
  5. Step 5: Solve for x
    x = 2,321,308,656.02/76,411.23
  6. Step 6: Final answer
    x = 30,379.16

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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.