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Finding the Fourth Proportional to 43,140.60, 64,710.90 and 41,258.70

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Solution

The fourth proportional to 43,140.60, 64,710.90 and 41,258.70 is: 61,888.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.60 : 64,710.90 = 41,258.70 : x
  2. Step 2: Convert to fraction form
    43,140.60/64,710.90 = 41,258.70/x
  3. Step 3: Cross multiply
    43,140.60x = 64,710.90 × 41,258.70
  4. Step 4: Simplify right side
    43,140.60x = 2,669,887,609.83
  5. Step 5: Solve for x
    x = 2,669,887,609.83/43,140.60
  6. Step 6: Final answer
    x = 61,888.05

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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.