Home / 89,712.42-123,802.47-53,901.51

Finding the Fourth Proportional to 89,712.42, 123,802.47 and 53,901.51

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Solution

The fourth proportional to 89,712.42, 123,802.47 and 53,901.51 is: 74,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,712.42 : 123,802.47 = 53,901.51 : x
  2. Step 2: Convert to fraction form
    89,712.42/123,802.47 = 53,901.51/x
  3. Step 3: Cross multiply
    89,712.42x = 123,802.47 × 53,901.51
  4. Step 4: Simplify right side
    89,712.42x = 6,673,140,074.73
  5. Step 5: Solve for x
    x = 6,673,140,074.73/89,712.42
  6. Step 6: Final answer
    x = 74,383.68

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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.