Home / 85,043.15-117,375.80-56,312.14

Finding the Fourth Proportional to 85,043.15, 117,375.80 and 56,312.14

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Solution

The fourth proportional to 85,043.15, 117,375.80 and 56,312.14 is: 77,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,043.15 : 117,375.80 = 56,312.14 : x
  2. Step 2: Convert to fraction form
    85,043.15/117,375.80 = 56,312.14/x
  3. Step 3: Cross multiply
    85,043.15x = 117,375.80 × 56,312.14
  4. Step 4: Simplify right side
    85,043.15x = 6,609,682,482.21
  5. Step 5: Solve for x
    x = 6,609,682,482.21/85,043.15
  6. Step 6: Final answer
    x = 77,721.52

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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.