Home / 52,403.78-72,317.40-28,530.47

Finding the Fourth Proportional to 52,403.78, 72,317.40 and 28,530.47

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Solution

The fourth proportional to 52,403.78, 72,317.40 and 28,530.47 is: 39,372.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,403.78 : 72,317.40 = 28,530.47 : x
  2. Step 2: Convert to fraction form
    52,403.78/72,317.40 = 28,530.47/x
  3. Step 3: Cross multiply
    52,403.78x = 72,317.40 × 28,530.47
  4. Step 4: Simplify right side
    52,403.78x = 2,063,249,411.18
  5. Step 5: Solve for x
    x = 2,063,249,411.18/52,403.78
  6. Step 6: Final answer
    x = 39,372.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.