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Finding the Fourth Proportional to 43,719.40, 61,323.80 and 43,719.40

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Solution

The fourth proportional to 43,719.40, 61,323.80 and 43,719.40 is: 61,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,719.40 : 61,323.80 = 43,719.40 : x
  2. Step 2: Convert to fraction form
    43,719.40/61,323.80 = 43,719.40/x
  3. Step 3: Cross multiply
    43,719.40x = 61,323.80 × 43,719.40
  4. Step 4: Simplify right side
    43,719.40x = 2,681,039,741.72
  5. Step 5: Solve for x
    x = 2,681,039,741.72/43,719.40
  6. Step 6: Final answer
    x = 61,323.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.