Home / 61,186.50-84,485.16-39,686.46

Finding the Fourth Proportional to 61,186.50, 84,485.16 and 39,686.46

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Solution

The fourth proportional to 61,186.50, 84,485.16 and 39,686.46 is: 54,798.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,186.50 : 84,485.16 = 39,686.46 : x
  2. Step 2: Convert to fraction form
    61,186.50/84,485.16 = 39,686.46/x
  3. Step 3: Cross multiply
    61,186.50x = 84,485.16 × 39,686.46
  4. Step 4: Simplify right side
    61,186.50x = 3,352,916,922.93
  5. Step 5: Solve for x
    x = 3,352,916,922.93/61,186.50
  6. Step 6: Final answer
    x = 54,798.31

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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.