Home / 85,011.16-127,400.08-53,790.52

Finding the Fourth Proportional to 85,011.16, 127,400.08 and 53,790.52

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Solution

The fourth proportional to 85,011.16, 127,400.08 and 53,790.52 is: 80,611.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,011.16 : 127,400.08 = 53,790.52 : x
  2. Step 2: Convert to fraction form
    85,011.16/127,400.08 = 53,790.52/x
  3. Step 3: Cross multiply
    85,011.16x = 127,400.08 × 53,790.52
  4. Step 4: Simplify right side
    85,011.16x = 6,852,916,551.24
  5. Step 5: Solve for x
    x = 6,852,916,551.24/85,011.16
  6. Step 6: Final answer
    x = 80,611.96

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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.