Home / 46,979.40-70,475.18-15,378.60

Finding the Fourth Proportional to 46,979.40, 70,475.18 and 15,378.60

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Solution

The fourth proportional to 46,979.40, 70,475.18 and 15,378.60 is: 23,069.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,979.40 : 70,475.18 = 15,378.60 : x
  2. Step 2: Convert to fraction form
    46,979.40/70,475.18 = 15,378.60/x
  3. Step 3: Cross multiply
    46,979.40x = 70,475.18 × 15,378.60
  4. Step 4: Simplify right side
    46,979.40x = 1,083,809,603.15
  5. Step 5: Solve for x
    x = 1,083,809,603.15/46,979.40
  6. Step 6: Final answer
    x = 23,069.89

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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.