Home / 56,969.40-78,617.70-31,818.90

Finding the Fourth Proportional to 56,969.40, 78,617.70 and 31,818.90

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Solution

The fourth proportional to 56,969.40, 78,617.70 and 31,818.90 is: 43,910.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,969.40 : 78,617.70 = 31,818.90 : x
  2. Step 2: Convert to fraction form
    56,969.40/78,617.70 = 31,818.90/x
  3. Step 3: Cross multiply
    56,969.40x = 78,617.70 × 31,818.90
  4. Step 4: Simplify right side
    56,969.40x = 2,501,528,734.53
  5. Step 5: Solve for x
    x = 2,501,528,734.53/56,969.40
  6. Step 6: Final answer
    x = 43,910.04

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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.