Home / 64,913.40-89,498.28-55,213.08

Finding the Fourth Proportional to 64,913.40, 89,498.28 and 55,213.08

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Solution

The fourth proportional to 64,913.40, 89,498.28 and 55,213.08 is: 76,124.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,913.40 : 89,498.28 = 55,213.08 : x
  2. Step 2: Convert to fraction form
    64,913.40/89,498.28 = 55,213.08/x
  3. Step 3: Cross multiply
    64,913.40x = 89,498.28 × 55,213.08
  4. Step 4: Simplify right side
    64,913.40x = 4,941,475,693.50
  5. Step 5: Solve for x
    x = 4,941,475,693.50/64,913.40
  6. Step 6: Final answer
    x = 76,124.12

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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.