Home / 93,871.17-129,539.48-51,428.79

Finding the Fourth Proportional to 93,871.17, 129,539.48 and 51,428.79

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Solution

The fourth proportional to 93,871.17, 129,539.48 and 51,428.79 is: 70,970.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,871.17 : 129,539.48 = 51,428.79 : x
  2. Step 2: Convert to fraction form
    93,871.17/129,539.48 = 51,428.79/x
  3. Step 3: Cross multiply
    93,871.17x = 129,539.48 × 51,428.79
  4. Step 4: Simplify right side
    93,871.17x = 6,662,058,456.49
  5. Step 5: Solve for x
    x = 6,662,058,456.49/93,871.17
  6. Step 6: Final answer
    x = 70,970.23

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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.