Home / 90,382.14-135,483.48-42,913.80

Finding the Fourth Proportional to 90,382.14, 135,483.48 and 42,913.80

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Solution

The fourth proportional to 90,382.14, 135,483.48 and 42,913.80 is: 64,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,382.14 : 135,483.48 = 42,913.80 : x
  2. Step 2: Convert to fraction form
    90,382.14/135,483.48 = 42,913.80/x
  3. Step 3: Cross multiply
    90,382.14x = 135,483.48 × 42,913.80
  4. Step 4: Simplify right side
    90,382.14x = 5,814,110,964.02
  5. Step 5: Solve for x
    x = 5,814,110,964.02/90,382.14
  6. Step 6: Final answer
    x = 64,328.10

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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.