Home / 97,779.16-134,927.67-55,340.56

Finding the Fourth Proportional to 97,779.16, 134,927.67 and 55,340.56

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Solution

The fourth proportional to 97,779.16, 134,927.67 and 55,340.56 is: 76,365.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,779.16 : 134,927.67 = 55,340.56 : x
  2. Step 2: Convert to fraction form
    97,779.16/134,927.67 = 55,340.56/x
  3. Step 3: Cross multiply
    97,779.16x = 134,927.67 × 55,340.56
  4. Step 4: Simplify right side
    97,779.16x = 7,466,972,817.30
  5. Step 5: Solve for x
    x = 7,466,972,817.30/97,779.16
  6. Step 6: Final answer
    x = 76,365.69

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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.