Home / 64,623.89-89,248.95-57,579.45

Finding the Fourth Proportional to 64,623.89, 89,248.95 and 57,579.45

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Solution

The fourth proportional to 64,623.89, 89,248.95 and 57,579.45 is: 79,520.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,623.89 : 89,248.95 = 57,579.45 : x
  2. Step 2: Convert to fraction form
    64,623.89/89,248.95 = 57,579.45/x
  3. Step 3: Cross multiply
    64,623.89x = 89,248.95 × 57,579.45
  4. Step 4: Simplify right side
    64,623.89x = 5,138,905,454.08
  5. Step 5: Solve for x
    x = 5,138,905,454.08/64,623.89
  6. Step 6: Final answer
    x = 79,520.22

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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.