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Finding the Fourth Proportional to 61,346, 92,040.60 and 30,203.12

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Solution

The fourth proportional to 61,346, 92,040.60 and 30,203.12 is: 45,315.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,346 : 92,040.60 = 30,203.12 : x
  2. Step 2: Convert to fraction form
    61,346/92,040.60 = 30,203.12/x
  3. Step 3: Cross multiply
    61,346x = 92,040.60 × 30,203.12
  4. Step 4: Simplify right side
    61,346x = 2,779,913,286.67
  5. Step 5: Solve for x
    x = 2,779,913,286.67/61,346
  6. Step 6: Final answer
    x = 45,315.31

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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.