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Finding the Fourth Proportional to 53,307.93, 79,764.57 and 42,745.65

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Solution

The fourth proportional to 53,307.93, 79,764.57 and 42,745.65 is: 63,960.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,307.93 : 79,764.57 = 42,745.65 : x
  2. Step 2: Convert to fraction form
    53,307.93/79,764.57 = 42,745.65/x
  3. Step 3: Cross multiply
    53,307.93x = 79,764.57 × 42,745.65
  4. Step 4: Simplify right side
    53,307.93x = 3,409,588,391.62
  5. Step 5: Solve for x
    x = 3,409,588,391.62/53,307.93
  6. Step 6: Final answer
    x = 63,960.25

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1.5x scale

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.