Home / 52,357.89-78,490.35-19,071.75

Finding the Fourth Proportional to 52,357.89, 78,490.35 and 19,071.75

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Solution

The fourth proportional to 52,357.89, 78,490.35 and 19,071.75 is: 28,590.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,357.89 : 78,490.35 = 19,071.75 : x
  2. Step 2: Convert to fraction form
    52,357.89/78,490.35 = 19,071.75/x
  3. Step 3: Cross multiply
    52,357.89x = 78,490.35 × 19,071.75
  4. Step 4: Simplify right side
    52,357.89x = 1,496,948,332.61
  5. Step 5: Solve for x
    x = 1,496,948,332.61/52,357.89
  6. Step 6: Final answer
    x = 28,590.69

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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.