Home / 90,516.13-135,730.35-53,088.46

Finding the Fourth Proportional to 90,516.13, 135,730.35 and 53,088.46

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Solution

The fourth proportional to 90,516.13, 135,730.35 and 53,088.46 is: 79,606.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,516.13 : 135,730.35 = 53,088.46 : x
  2. Step 2: Convert to fraction form
    90,516.13/135,730.35 = 53,088.46/x
  3. Step 3: Cross multiply
    90,516.13x = 135,730.35 × 53,088.46
  4. Step 4: Simplify right side
    90,516.13x = 7,205,715,256.76
  5. Step 5: Solve for x
    x = 7,205,715,256.76/90,516.13
  6. Step 6: Final answer
    x = 79,606.97

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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.