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Finding the Fourth Proportional to 98,011.50, 135,256.35 and 53,299.50

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Solution

The fourth proportional to 98,011.50, 135,256.35 and 53,299.50 is: 73,553.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,011.50 : 135,256.35 = 53,299.50 : x
  2. Step 2: Convert to fraction form
    98,011.50/135,256.35 = 53,299.50/x
  3. Step 3: Cross multiply
    98,011.50x = 135,256.35 × 53,299.50
  4. Step 4: Simplify right side
    98,011.50x = 7,209,095,826.83
  5. Step 5: Solve for x
    x = 7,209,095,826.83/98,011.50
  6. Step 6: Final answer
    x = 73,553.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.