Home / 53,670.87-80,508.47-13,690.89

Finding the Fourth Proportional to 53,670.87, 80,508.47 and 13,690.89

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Solution

The fourth proportional to 53,670.87, 80,508.47 and 13,690.89 is: 20,536.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,670.87 : 80,508.47 = 13,690.89 : x
  2. Step 2: Convert to fraction form
    53,670.87/80,508.47 = 13,690.89/x
  3. Step 3: Cross multiply
    53,670.87x = 80,508.47 × 13,690.89
  4. Step 4: Simplify right side
    53,670.87x = 1,102,232,606.84
  5. Step 5: Solve for x
    x = 1,102,232,606.84/53,670.87
  6. Step 6: Final answer
    x = 20,536.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.