Home / 77,701.49-116,774.36-72,436.31

Finding the Fourth Proportional to 77,701.49, 116,774.36 and 72,436.31

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Solution

The fourth proportional to 77,701.49, 116,774.36 and 72,436.31 is: 108,861.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,701.49 : 116,774.36 = 72,436.31 : x
  2. Step 2: Convert to fraction form
    77,701.49/116,774.36 = 72,436.31/x
  3. Step 3: Cross multiply
    77,701.49x = 116,774.36 × 72,436.31
  4. Step 4: Simplify right side
    77,701.49x = 8,458,703,741.01
  5. Step 5: Solve for x
    x = 8,458,703,741.01/77,701.49
  6. Step 6: Final answer
    x = 108,861.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.