Home / 90,416.81-135,359.17-60,356.49

Finding the Fourth Proportional to 90,416.81, 135,359.17 and 60,356.49

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Solution

The fourth proportional to 90,416.81, 135,359.17 and 60,356.49 is: 90,357.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,416.81 : 135,359.17 = 60,356.49 : x
  2. Step 2: Convert to fraction form
    90,416.81/135,359.17 = 60,356.49/x
  3. Step 3: Cross multiply
    90,416.81x = 135,359.17 × 60,356.49
  4. Step 4: Simplify right side
    90,416.81x = 8,169,804,088.73
  5. Step 5: Solve for x
    x = 8,169,804,088.73/90,416.81
  6. Step 6: Final answer
    x = 90,357.14

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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.