Home / 75,417.18-113,140.34-28,666.42

Finding the Fourth Proportional to 75,417.18, 113,140.34 and 28,666.42

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Solution

The fourth proportional to 75,417.18, 113,140.34 and 28,666.42 is: 43,005.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,417.18 : 113,140.34 = 28,666.42 : x
  2. Step 2: Convert to fraction form
    75,417.18/113,140.34 = 28,666.42/x
  3. Step 3: Cross multiply
    75,417.18x = 113,140.34 × 28,666.42
  4. Step 4: Simplify right side
    75,417.18x = 3,243,328,505.38
  5. Step 5: Solve for x
    x = 3,243,328,505.38/75,417.18
  6. Step 6: Final answer
    x = 43,005.17

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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.