Home / 55,316.64-76,343.52-31,446.90

Finding the Fourth Proportional to 55,316.64, 76,343.52 and 31,446.90

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Solution

The fourth proportional to 55,316.64, 76,343.52 and 31,446.90 is: 43,400.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,316.64 : 76,343.52 = 31,446.90 : x
  2. Step 2: Convert to fraction form
    55,316.64/76,343.52 = 31,446.90/x
  3. Step 3: Cross multiply
    55,316.64x = 76,343.52 × 31,446.90
  4. Step 4: Simplify right side
    55,316.64x = 2,400,767,039.09
  5. Step 5: Solve for x
    x = 2,400,767,039.09/55,316.64
  6. Step 6: Final answer
    x = 43,400.45

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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.