Home / 47,688.51-71,818.31-43,432.15

Finding the Fourth Proportional to 47,688.51, 71,818.31 and 43,432.15

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Solution

The fourth proportional to 47,688.51, 71,818.31 and 43,432.15 is: 65,408.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,688.51 : 71,818.31 = 43,432.15 : x
  2. Step 2: Convert to fraction form
    47,688.51/71,818.31 = 43,432.15/x
  3. Step 3: Cross multiply
    47,688.51x = 71,818.31 × 43,432.15
  4. Step 4: Simplify right side
    47,688.51x = 3,119,223,676.36
  5. Step 5: Solve for x
    x = 3,119,223,676.36/47,688.51
  6. Step 6: Final answer
    x = 65,408.29

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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.