Home / 54,015.40-74,511.30-31,655.08

Finding the Fourth Proportional to 54,015.40, 74,511.30 and 31,655.08

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Solution

The fourth proportional to 54,015.40, 74,511.30 and 31,655.08 is: 43,666.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,015.40 : 74,511.30 = 31,655.08 : x
  2. Step 2: Convert to fraction form
    54,015.40/74,511.30 = 31,655.08/x
  3. Step 3: Cross multiply
    54,015.40x = 74,511.30 × 31,655.08
  4. Step 4: Simplify right side
    54,015.40x = 2,358,661,162.40
  5. Step 5: Solve for x
    x = 2,358,661,162.40/54,015.40
  6. Step 6: Final answer
    x = 43,666.46

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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.