Home / 56,186.87-77,534.42-30,688.07

Finding the Fourth Proportional to 56,186.87, 77,534.42 and 30,688.07

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Solution

The fourth proportional to 56,186.87, 77,534.42 and 30,688.07 is: 42,347.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,186.87 : 77,534.42 = 30,688.07 : x
  2. Step 2: Convert to fraction form
    56,186.87/77,534.42 = 30,688.07/x
  3. Step 3: Cross multiply
    56,186.87x = 77,534.42 × 30,688.07
  4. Step 4: Simplify right side
    56,186.87x = 2,379,381,167.26
  5. Step 5: Solve for x
    x = 2,379,381,167.26/56,186.87
  6. Step 6: Final answer
    x = 42,347.64

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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.