Home / 52,403.79-72,317.52-28,530.40

Finding the Fourth Proportional to 52,403.79, 72,317.52 and 28,530.40

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Solution

The fourth proportional to 52,403.79, 72,317.52 and 28,530.40 is: 39,372.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,403.79 : 72,317.52 = 28,530.40 : x
  2. Step 2: Convert to fraction form
    52,403.79/72,317.52 = 28,530.40/x
  3. Step 3: Cross multiply
    52,403.79x = 72,317.52 × 28,530.40
  4. Step 4: Simplify right side
    52,403.79x = 2,063,247,772.61
  5. Step 5: Solve for x
    x = 2,063,247,772.61/52,403.79
  6. Step 6: Final answer
    x = 39,372.11

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1.5x scale

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.