Home / 74,875.75-112,282.63-30,472.36

Finding the Fourth Proportional to 74,875.75, 112,282.63 and 30,472.36

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Solution

The fourth proportional to 74,875.75, 112,282.63 and 30,472.36 is: 45,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,875.75 : 112,282.63 = 30,472.36 : x
  2. Step 2: Convert to fraction form
    74,875.75/112,282.63 = 30,472.36/x
  3. Step 3: Cross multiply
    74,875.75x = 112,282.63 × 30,472.36
  4. Step 4: Simplify right side
    74,875.75x = 3,421,516,366.22
  5. Step 5: Solve for x
    x = 3,421,516,366.22/74,875.75
  6. Step 6: Final answer
    x = 45,695.92

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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.