Home / 48,140.93-66,412.12-31,150.65

Finding the Fourth Proportional to 48,140.93, 66,412.12 and 31,150.65

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Solution

The fourth proportional to 48,140.93, 66,412.12 and 31,150.65 is: 42,973.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,140.93 : 66,412.12 = 31,150.65 : x
  2. Step 2: Convert to fraction form
    48,140.93/66,412.12 = 31,150.65/x
  3. Step 3: Cross multiply
    48,140.93x = 66,412.12 × 31,150.65
  4. Step 4: Simplify right side
    48,140.93x = 2,068,780,617.25
  5. Step 5: Solve for x
    x = 2,068,780,617.25/48,140.93
  6. Step 6: Final answer
    x = 42,973.42

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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.