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Finding the Fourth Proportional to 85,967.46, 128,950.74 and 46,773.72

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Solution

The fourth proportional to 85,967.46, 128,950.74 and 46,773.72 is: 70,160.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,967.46 : 128,950.74 = 46,773.72 : x
  2. Step 2: Convert to fraction form
    85,967.46/128,950.74 = 46,773.72/x
  3. Step 3: Cross multiply
    85,967.46x = 128,950.74 × 46,773.72
  4. Step 4: Simplify right side
    85,967.46x = 6,031,505,806.55
  5. Step 5: Solve for x
    x = 6,031,505,806.55/85,967.46
  6. Step 6: Final answer
    x = 70,160.34

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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.