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Finding the Fourth Proportional to 77,702.98, 107,230.53 and 45,887.58

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Solution

The fourth proportional to 77,702.98, 107,230.53 and 45,887.58 is: 63,325.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,702.98 : 107,230.53 = 45,887.58 : x
  2. Step 2: Convert to fraction form
    77,702.98/107,230.53 = 45,887.58/x
  3. Step 3: Cross multiply
    77,702.98x = 107,230.53 × 45,887.58
  4. Step 4: Simplify right side
    77,702.98x = 4,920,549,523.82
  5. Step 5: Solve for x
    x = 4,920,549,523.82/77,702.98
  6. Step 6: Final answer
    x = 63,325.11

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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.