Home / 90,463.02-135,598.70-30,434.33

Finding the Fourth Proportional to 90,463.02, 135,598.70 and 30,434.33

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Solution

The fourth proportional to 90,463.02, 135,598.70 and 30,434.33 is: 45,619.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,463.02 : 135,598.70 = 30,434.33 : x
  2. Step 2: Convert to fraction form
    90,463.02/135,598.70 = 30,434.33/x
  3. Step 3: Cross multiply
    90,463.02x = 135,598.70 × 30,434.33
  4. Step 4: Simplify right side
    90,463.02x = 4,126,854,905.38
  5. Step 5: Solve for x
    x = 4,126,854,905.38/90,463.02
  6. Step 6: Final answer
    x = 45,619.25

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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.