Home / 64,525.04-89,054.20-39,389.12

Finding the Fourth Proportional to 64,525.04, 89,054.20 and 39,389.12

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Solution

The fourth proportional to 64,525.04, 89,054.20 and 39,389.12 is: 54,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,525.04 : 89,054.20 = 39,389.12 : x
  2. Step 2: Convert to fraction form
    64,525.04/89,054.20 = 39,389.12/x
  3. Step 3: Cross multiply
    64,525.04x = 89,054.20 × 39,389.12
  4. Step 4: Simplify right side
    64,525.04x = 3,507,766,570.30
  5. Step 5: Solve for x
    x = 3,507,766,570.30/64,525.04
  6. Step 6: Final answer
    x = 54,362.87

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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.