Home / 52,436.52-78,666.30-38,543.40

Finding the Fourth Proportional to 52,436.52, 78,666.30 and 38,543.40

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Solution

The fourth proportional to 52,436.52, 78,666.30 and 38,543.40 is: 57,823.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,436.52 : 78,666.30 = 38,543.40 : x
  2. Step 2: Convert to fraction form
    52,436.52/78,666.30 = 38,543.40/x
  3. Step 3: Cross multiply
    52,436.52x = 78,666.30 × 38,543.40
  4. Step 4: Simplify right side
    52,436.52x = 3,032,066,667.42
  5. Step 5: Solve for x
    x = 3,032,066,667.42/52,436.52
  6. Step 6: Final answer
    x = 57,823.57

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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.