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Finding the Fourth Proportional to 57,998.31, 87,392.63 and 47,699.10

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Solution

The fourth proportional to 57,998.31, 87,392.63 and 47,699.10 is: 71,873.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,998.31 : 87,392.63 = 47,699.10 : x
  2. Step 2: Convert to fraction form
    57,998.31/87,392.63 = 47,699.10/x
  3. Step 3: Cross multiply
    57,998.31x = 87,392.63 × 47,699.10
  4. Step 4: Simplify right side
    57,998.31x = 4,168,549,559.14
  5. Step 5: Solve for x
    x = 4,168,549,559.14/57,998.31
  6. Step 6: Final answer
    x = 71,873.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.