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Finding the Fourth Proportional to 61,143.04, 91,741.62 and 38,950.72

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Solution

The fourth proportional to 61,143.04, 91,741.62 and 38,950.72 is: 58,443.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,143.04 : 91,741.62 = 38,950.72 : x
  2. Step 2: Convert to fraction form
    61,143.04/91,741.62 = 38,950.72/x
  3. Step 3: Cross multiply
    61,143.04x = 91,741.62 × 38,950.72
  4. Step 4: Simplify right side
    61,143.04x = 3,573,402,152.97
  5. Step 5: Solve for x
    x = 3,573,402,152.97/61,143.04
  6. Step 6: Final answer
    x = 58,443.32

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1.5x scale

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.