Home / 85,043.65-117,376.49-56,312.64

Finding the Fourth Proportional to 85,043.65, 117,376.49 and 56,312.64

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Solution

The fourth proportional to 85,043.65, 117,376.49 and 56,312.64 is: 77,722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,043.65 : 117,376.49 = 56,312.64 : x
  2. Step 2: Convert to fraction form
    85,043.65/117,376.49 = 56,312.64/x
  3. Step 3: Cross multiply
    85,043.65x = 117,376.49 × 56,312.64
  4. Step 4: Simplify right side
    85,043.65x = 6,609,780,025.83
  5. Step 5: Solve for x
    x = 6,609,780,025.83/85,043.65
  6. Step 6: Final answer
    x = 77,722.21

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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.