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Finding the Fourth Proportional to 61,746, 85,189.68 and 37,860.72

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Solution

The fourth proportional to 61,746, 85,189.68 and 37,860.72 is: 52,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,746 : 85,189.68 = 37,860.72 : x
  2. Step 2: Convert to fraction form
    61,746/85,189.68 = 37,860.72/x
  3. Step 3: Cross multiply
    61,746x = 85,189.68 × 37,860.72
  4. Step 4: Simplify right side
    61,746x = 3,225,342,621.37
  5. Step 5: Solve for x
    x = 3,225,342,621.37/61,746
  6. Step 6: Final answer
    x = 52,235.65

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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.