Home / 74,730.96-103,070.40-47,875.97

Finding the Fourth Proportional to 74,730.96, 103,070.40 and 47,875.97

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Solution

The fourth proportional to 74,730.96, 103,070.40 and 47,875.97 is: 66,031.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,730.96 : 103,070.40 = 47,875.97 : x
  2. Step 2: Convert to fraction form
    74,730.96/103,070.40 = 47,875.97/x
  3. Step 3: Cross multiply
    74,730.96x = 103,070.40 × 47,875.97
  4. Step 4: Simplify right side
    74,730.96x = 4,934,595,378.29
  5. Step 5: Solve for x
    x = 4,934,595,378.29/74,730.96
  6. Step 6: Final answer
    x = 66,031.47

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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.