Home / 56,702.08-85,006.73-31,400.72

Finding the Fourth Proportional to 56,702.08, 85,006.73 and 31,400.72

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Solution

The fourth proportional to 56,702.08, 85,006.73 and 31,400.72 is: 47,075.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,702.08 : 85,006.73 = 31,400.72 : x
  2. Step 2: Convert to fraction form
    56,702.08/85,006.73 = 31,400.72/x
  3. Step 3: Cross multiply
    56,702.08x = 85,006.73 × 31,400.72
  4. Step 4: Simplify right side
    56,702.08x = 2,669,272,369.84
  5. Step 5: Solve for x
    x = 2,669,272,369.84/56,702.08
  6. Step 6: Final answer
    x = 47,075.39

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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.