Home / 56,861.87-78,468.13-31,368.26

Finding the Fourth Proportional to 56,861.87, 78,468.13 and 31,368.26

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Solution

The fourth proportional to 56,861.87, 78,468.13 and 31,368.26 is: 43,287.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,861.87 : 78,468.13 = 31,368.26 : x
  2. Step 2: Convert to fraction form
    56,861.87/78,468.13 = 31,368.26/x
  3. Step 3: Cross multiply
    56,861.87x = 78,468.13 × 31,368.26
  4. Step 4: Simplify right side
    56,861.87x = 2,461,408,703.55
  5. Step 5: Solve for x
    x = 2,461,408,703.55/56,861.87
  6. Step 6: Final answer
    x = 43,287.51

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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.