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Finding the Fourth Proportional to 71,673.68, 98,916.36 and 43,386.32

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Solution

The fourth proportional to 71,673.68, 98,916.36 and 43,386.32 is: 59,877.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,673.68 : 98,916.36 = 43,386.32 : x
  2. Step 2: Convert to fraction form
    71,673.68/98,916.36 = 43,386.32/x
  3. Step 3: Cross multiply
    71,673.68x = 98,916.36 × 43,386.32
  4. Step 4: Simplify right side
    71,673.68x = 4,291,616,848.20
  5. Step 5: Solve for x
    x = 4,291,616,848.20/71,673.68
  6. Step 6: Final answer
    x = 59,877.17

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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.