Home / 81,829.63-112,886.76-53,147.26

Finding the Fourth Proportional to 81,829.63, 112,886.76 and 53,147.26

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Solution

The fourth proportional to 81,829.63, 112,886.76 and 53,147.26 is: 73,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,829.63 : 112,886.76 = 53,147.26 : x
  2. Step 2: Convert to fraction form
    81,829.63/112,886.76 = 53,147.26/x
  3. Step 3: Cross multiply
    81,829.63x = 112,886.76 × 53,147.26
  4. Step 4: Simplify right side
    81,829.63x = 5,999,621,984.28
  5. Step 5: Solve for x
    x = 5,999,621,984.28/81,829.63
  6. Step 6: Final answer
    x = 73,318.45

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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.