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Finding the Fourth Proportional to 56,373.08, 77,791.82 and 30,878.12

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Solution

The fourth proportional to 56,373.08, 77,791.82 and 30,878.12 is: 42,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,373.08 : 77,791.82 = 30,878.12 : x
  2. Step 2: Convert to fraction form
    56,373.08/77,791.82 = 30,878.12/x
  3. Step 3: Cross multiply
    56,373.08x = 77,791.82 × 30,878.12
  4. Step 4: Simplify right side
    56,373.08x = 2,402,065,424.65
  5. Step 5: Solve for x
    x = 2,402,065,424.65/56,373.08
  6. Step 6: Final answer
    x = 42,610.15

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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.