Home / 88,161.17-121,663.29-47,875.28

Finding the Fourth Proportional to 88,161.17, 121,663.29 and 47,875.28

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Solution

The fourth proportional to 88,161.17, 121,663.29 and 47,875.28 is: 66,068.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,161.17 : 121,663.29 = 47,875.28 : x
  2. Step 2: Convert to fraction form
    88,161.17/121,663.29 = 47,875.28/x
  3. Step 3: Cross multiply
    88,161.17x = 121,663.29 × 47,875.28
  4. Step 4: Simplify right side
    88,161.17x = 5,824,663,466.15
  5. Step 5: Solve for x
    x = 5,824,663,466.15/88,161.17
  6. Step 6: Final answer
    x = 66,068.36

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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.