Home / 75,057.31-112,577.59-18,897.40

Finding the Fourth Proportional to 75,057.31, 112,577.59 and 18,897.40

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Solution

The fourth proportional to 75,057.31, 112,577.59 and 18,897.40 is: 28,343.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,057.31 : 112,577.59 = 18,897.40 : x
  2. Step 2: Convert to fraction form
    75,057.31/112,577.59 = 18,897.40/x
  3. Step 3: Cross multiply
    75,057.31x = 112,577.59 × 18,897.40
  4. Step 4: Simplify right side
    75,057.31x = 2,127,423,749.27
  5. Step 5: Solve for x
    x = 2,127,423,749.27/75,057.31
  6. Step 6: Final answer
    x = 28,343.99

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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.