Home / 92,861.48-128,145.56-50,419.10

Finding the Fourth Proportional to 92,861.48, 128,145.56 and 50,419.10

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Solution

The fourth proportional to 92,861.48, 128,145.56 and 50,419.10 is: 69,576.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,861.48 : 128,145.56 = 50,419.10 : x
  2. Step 2: Convert to fraction form
    92,861.48/128,145.56 = 50,419.10/x
  3. Step 3: Cross multiply
    92,861.48x = 128,145.56 × 50,419.10
  4. Step 4: Simplify right side
    92,861.48x = 6,460,983,804.20
  5. Step 5: Solve for x
    x = 6,460,983,804.20/92,861.48
  6. Step 6: Final answer
    x = 69,576.58

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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.