Home / 47,349.10-70,930.05-30,720.70

Finding the Fourth Proportional to 47,349.10, 70,930.05 and 30,720.70

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Solution

The fourth proportional to 47,349.10, 70,930.05 and 30,720.70 is: 46,020.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,349.10 : 70,930.05 = 30,720.70 : x
  2. Step 2: Convert to fraction form
    47,349.10/70,930.05 = 30,720.70/x
  3. Step 3: Cross multiply
    47,349.10x = 70,930.05 × 30,720.70
  4. Step 4: Simplify right side
    47,349.10x = 2,179,020,787.04
  5. Step 5: Solve for x
    x = 2,179,020,787.04/47,349.10
  6. Step 6: Final answer
    x = 46,020.32

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1.5x scale

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.