Home / 89,972.84-124,137.48-51,730.28

Finding the Fourth Proportional to 89,972.84, 124,137.48 and 51,730.28

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Solution

The fourth proportional to 89,972.84, 124,137.48 and 51,730.28 is: 71,373.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,972.84 : 124,137.48 = 51,730.28 : x
  2. Step 2: Convert to fraction form
    89,972.84/124,137.48 = 51,730.28/x
  3. Step 3: Cross multiply
    89,972.84x = 124,137.48 × 51,730.28
  4. Step 4: Simplify right side
    89,972.84x = 6,421,666,598.89
  5. Step 5: Solve for x
    x = 6,421,666,598.89/89,972.84
  6. Step 6: Final answer
    x = 71,373.39

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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.