Home / 47,457.08-71,202.58-21,159.48

Finding the Fourth Proportional to 47,457.08, 71,202.58 and 21,159.48

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Solution

The fourth proportional to 47,457.08, 71,202.58 and 21,159.48 is: 31,746.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,457.08 : 71,202.58 = 21,159.48 : x
  2. Step 2: Convert to fraction form
    47,457.08/71,202.58 = 21,159.48/x
  3. Step 3: Cross multiply
    47,457.08x = 71,202.58 × 21,159.48
  4. Step 4: Simplify right side
    47,457.08x = 1,506,609,567.46
  5. Step 5: Solve for x
    x = 1,506,609,567.46/47,457.08
  6. Step 6: Final answer
    x = 31,746.78

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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.