Home / 90,070.16-135,107.96-30,904.97

Finding the Fourth Proportional to 90,070.16, 135,107.96 and 30,904.97

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Solution

The fourth proportional to 90,070.16, 135,107.96 and 30,904.97 is: 46,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,070.16 : 135,107.96 = 30,904.97 : x
  2. Step 2: Convert to fraction form
    90,070.16/135,107.96 = 30,904.97/x
  3. Step 3: Cross multiply
    90,070.16x = 135,107.96 × 30,904.97
  4. Step 4: Simplify right side
    90,070.16x = 4,175,506,620.50
  5. Step 5: Solve for x
    x = 4,175,506,620.50/90,070.16
  6. Step 6: Final answer
    x = 46,358.38

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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.