Home / 98,533.10-147,763.20-31,975.40

Finding the Fourth Proportional to 98,533.10, 147,763.20 and 31,975.40

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Solution

The fourth proportional to 98,533.10, 147,763.20 and 31,975.40 is: 47,951.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,533.10 : 147,763.20 = 31,975.40 : x
  2. Step 2: Convert to fraction form
    98,533.10/147,763.20 = 31,975.40/x
  3. Step 3: Cross multiply
    98,533.10x = 147,763.20 × 31,975.40
  4. Step 4: Simplify right side
    98,533.10x = 4,724,787,425.28
  5. Step 5: Solve for x
    x = 4,724,787,425.28/98,533.10
  6. Step 6: Final answer
    x = 47,951.27

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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.