Home / 72,735.59-100,318.19-49,779.02

Finding the Fourth Proportional to 72,735.59, 100,318.19 and 49,779.02

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Solution

The fourth proportional to 72,735.59, 100,318.19 and 49,779.02 is: 68,656.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,735.59 : 100,318.19 = 49,779.02 : x
  2. Step 2: Convert to fraction form
    72,735.59/100,318.19 = 49,779.02/x
  3. Step 3: Cross multiply
    72,735.59x = 100,318.19 × 49,779.02
  4. Step 4: Simplify right side
    72,735.59x = 4,993,740,435.89
  5. Step 5: Solve for x
    x = 4,993,740,435.89/72,735.59
  6. Step 6: Final answer
    x = 68,656.08

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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.