Home / 90,332.56-135,511.64-37,730.08

Finding the Fourth Proportional to 90,332.56, 135,511.64 and 37,730.08

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Solution

The fourth proportional to 90,332.56, 135,511.64 and 37,730.08 is: 56,600.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,332.56 : 135,511.64 = 37,730.08 : x
  2. Step 2: Convert to fraction form
    90,332.56/135,511.64 = 37,730.08/x
  3. Step 3: Cross multiply
    90,332.56x = 135,511.64 × 37,730.08
  4. Step 4: Simplify right side
    90,332.56x = 5,112,865,018.13
  5. Step 5: Solve for x
    x = 5,112,865,018.13/90,332.56
  6. Step 6: Final answer
    x = 56,600.47

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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.