Home / 64,688.36-89,271.34-36,009.50

Finding the Fourth Proportional to 64,688.36, 89,271.34 and 36,009.50

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Solution

The fourth proportional to 64,688.36, 89,271.34 and 36,009.50 is: 49,693.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,688.36 : 89,271.34 = 36,009.50 : x
  2. Step 2: Convert to fraction form
    64,688.36/89,271.34 = 36,009.50/x
  3. Step 3: Cross multiply
    64,688.36x = 89,271.34 × 36,009.50
  4. Step 4: Simplify right side
    64,688.36x = 3,214,616,317.73
  5. Step 5: Solve for x
    x = 3,214,616,317.73/64,688.36
  6. Step 6: Final answer
    x = 49,693.89

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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.