Home / 54,208.61-81,165.29-42,158.93

Finding the Fourth Proportional to 54,208.61, 81,165.29 and 42,158.93

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Solution

The fourth proportional to 54,208.61, 81,165.29 and 42,158.93 is: 63,123.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,208.61 : 81,165.29 = 42,158.93 : x
  2. Step 2: Convert to fraction form
    54,208.61/81,165.29 = 42,158.93/x
  3. Step 3: Cross multiply
    54,208.61x = 81,165.29 × 42,158.93
  4. Step 4: Simplify right side
    54,208.61x = 3,421,841,479.11
  5. Step 5: Solve for x
    x = 3,421,841,479.11/54,208.61
  6. Step 6: Final answer
    x = 63,123.58

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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.