Home / 42,741.14-64,111.72-11,576.40

Finding the Fourth Proportional to 42,741.14, 64,111.72 and 11,576.40

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Solution

The fourth proportional to 42,741.14, 64,111.72 and 11,576.40 is: 17,364.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,741.14 : 64,111.72 = 11,576.40 : x
  2. Step 2: Convert to fraction form
    42,741.14/64,111.72 = 11,576.40/x
  3. Step 3: Cross multiply
    42,741.14x = 64,111.72 × 11,576.40
  4. Step 4: Simplify right side
    42,741.14x = 742,182,915.41
  5. Step 5: Solve for x
    x = 742,182,915.41/42,741.14
  6. Step 6: Final answer
    x = 17,364.60

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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.