Home / 43,120.86-59,487.12-31,165.26

Finding the Fourth Proportional to 43,120.86, 59,487.12 and 31,165.26

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Solution

The fourth proportional to 43,120.86, 59,487.12 and 31,165.26 is: 42,993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,120.86 : 59,487.12 = 31,165.26 : x
  2. Step 2: Convert to fraction form
    43,120.86/59,487.12 = 31,165.26/x
  3. Step 3: Cross multiply
    43,120.86x = 59,487.12 × 31,165.26
  4. Step 4: Simplify right side
    43,120.86x = 1,853,931,561.45
  5. Step 5: Solve for x
    x = 1,853,931,561.45/43,120.86
  6. Step 6: Final answer
    x = 42,993.84

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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.