Home / 64,686.65-89,265.25-36,005.36

Finding the Fourth Proportional to 64,686.65, 89,265.25 and 36,005.36

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Solution

The fourth proportional to 64,686.65, 89,265.25 and 36,005.36 is: 49,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,686.65 : 89,265.25 = 36,005.36 : x
  2. Step 2: Convert to fraction form
    64,686.65/89,265.25 = 36,005.36/x
  3. Step 3: Cross multiply
    64,686.65x = 89,265.25 × 36,005.36
  4. Step 4: Simplify right side
    64,686.65x = 3,214,027,461.74
  5. Step 5: Solve for x
    x = 3,214,027,461.74/64,686.65
  6. Step 6: Final answer
    x = 49,686.10

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1.5x scale

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.