Home / 91,081.03-125,688.26-52,838.60

Finding the Fourth Proportional to 91,081.03, 125,688.26 and 52,838.60

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Solution

The fourth proportional to 91,081.03, 125,688.26 and 52,838.60 is: 72,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,081.03 : 125,688.26 = 52,838.60 : x
  2. Step 2: Convert to fraction form
    91,081.03/125,688.26 = 52,838.60/x
  3. Step 3: Cross multiply
    91,081.03x = 125,688.26 × 52,838.60
  4. Step 4: Simplify right side
    91,081.03x = 6,641,191,961.77
  5. Step 5: Solve for x
    x = 6,641,191,961.77/91,081.03
  6. Step 6: Final answer
    x = 72,915.20

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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.