Home / 61,432.56-92,148.78-19,312.44

Finding the Fourth Proportional to 61,432.56, 92,148.78 and 19,312.44

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Solution

The fourth proportional to 61,432.56, 92,148.78 and 19,312.44 is: 28,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,432.56 : 92,148.78 = 19,312.44 : x
  2. Step 2: Convert to fraction form
    61,432.56/92,148.78 = 19,312.44/x
  3. Step 3: Cross multiply
    61,432.56x = 92,148.78 × 19,312.44
  4. Step 4: Simplify right side
    61,432.56x = 1,779,617,784.82
  5. Step 5: Solve for x
    x = 1,779,617,784.82/61,432.56
  6. Step 6: Final answer
    x = 28,968.64

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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.