Home / 93,779.26-129,403.92-74,707.60

Finding the Fourth Proportional to 93,779.26, 129,403.92 and 74,707.60

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Solution

The fourth proportional to 93,779.26, 129,403.92 and 74,707.60 is: 103,087.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,779.26 : 129,403.92 = 74,707.60 : x
  2. Step 2: Convert to fraction form
    93,779.26/129,403.92 = 74,707.60/x
  3. Step 3: Cross multiply
    93,779.26x = 129,403.92 × 74,707.60
  4. Step 4: Simplify right side
    93,779.26x = 9,667,456,293.79
  5. Step 5: Solve for x
    x = 9,667,456,293.79/93,779.26
  6. Step 6: Final answer
    x = 103,087.36

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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.