Home / 64,759.02-97,138.40-20,389.65

Finding the Fourth Proportional to 64,759.02, 97,138.40 and 20,389.65

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Solution

The fourth proportional to 64,759.02, 97,138.40 and 20,389.65 is: 30,584.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,759.02 : 97,138.40 = 20,389.65 : x
  2. Step 2: Convert to fraction form
    64,759.02/97,138.40 = 20,389.65/x
  3. Step 3: Cross multiply
    64,759.02x = 97,138.40 × 20,389.65
  4. Step 4: Simplify right side
    64,759.02x = 1,980,617,875.61
  5. Step 5: Solve for x
    x = 1,980,617,875.61/64,759.02
  6. Step 6: Final answer
    x = 30,584.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.