Home / 89,970.13-124,154.40-51,702.63

Finding the Fourth Proportional to 89,970.13, 124,154.40 and 51,702.63

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Solution

The fourth proportional to 89,970.13, 124,154.40 and 51,702.63 is: 71,347.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,970.13 : 124,154.40 = 51,702.63 : x
  2. Step 2: Convert to fraction form
    89,970.13/124,154.40 = 51,702.63/x
  3. Step 3: Cross multiply
    89,970.13x = 124,154.40 × 51,702.63
  4. Step 4: Simplify right side
    89,970.13x = 6,419,109,006.07
  5. Step 5: Solve for x
    x = 6,419,109,006.07/89,970.13
  6. Step 6: Final answer
    x = 71,347.11

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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.