Home / 72,946.77-109,426.29-20,356.89

Finding the Fourth Proportional to 72,946.77, 109,426.29 and 20,356.89

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Solution

The fourth proportional to 72,946.77, 109,426.29 and 20,356.89 is: 30,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,946.77 : 109,426.29 = 20,356.89 : x
  2. Step 2: Convert to fraction form
    72,946.77/109,426.29 = 20,356.89/x
  3. Step 3: Cross multiply
    72,946.77x = 109,426.29 × 20,356.89
  4. Step 4: Simplify right side
    72,946.77x = 2,227,578,948.64
  5. Step 5: Solve for x
    x = 2,227,578,948.64/72,946.77
  6. Step 6: Final answer
    x = 30,537.05

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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.