Home / 56,184.09-77,534.31-30,690.81

Finding the Fourth Proportional to 56,184.09, 77,534.31 and 30,690.81

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Solution

The fourth proportional to 56,184.09, 77,534.31 and 30,690.81 is: 42,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,184.09 : 77,534.31 = 30,690.81 : x
  2. Step 2: Convert to fraction form
    56,184.09/77,534.31 = 30,690.81/x
  3. Step 3: Cross multiply
    56,184.09x = 77,534.31 × 30,690.81
  4. Step 4: Simplify right side
    56,184.09x = 2,379,590,935.70
  5. Step 5: Solve for x
    x = 2,379,590,935.70/56,184.09
  6. Step 6: Final answer
    x = 42,353.46

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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.