Home / 47,712.90-71,569.35-45,307.20

Finding the Fourth Proportional to 47,712.90, 71,569.35 and 45,307.20

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Solution

The fourth proportional to 47,712.90, 71,569.35 and 45,307.20 is: 67,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,712.90 : 71,569.35 = 45,307.20 : x
  2. Step 2: Convert to fraction form
    47,712.90/71,569.35 = 45,307.20/x
  3. Step 3: Cross multiply
    47,712.90x = 71,569.35 × 45,307.20
  4. Step 4: Simplify right side
    47,712.90x = 3,242,606,854.32
  5. Step 5: Solve for x
    x = 3,242,606,854.32/47,712.90
  6. Step 6: Final answer
    x = 67,960.80

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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.