Home / 66,384.01-91,520.40-64,320.13

Finding the Fourth Proportional to 66,384.01, 91,520.40 and 64,320.13

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Solution

The fourth proportional to 66,384.01, 91,520.40 and 64,320.13 is: 88,675.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,384.01 : 91,520.40 = 64,320.13 : x
  2. Step 2: Convert to fraction form
    66,384.01/91,520.40 = 64,320.13/x
  3. Step 3: Cross multiply
    66,384.01x = 91,520.40 × 64,320.13
  4. Step 4: Simplify right side
    66,384.01x = 5,886,604,025.65
  5. Step 5: Solve for x
    x = 5,886,604,025.65/66,384.01
  6. Step 6: Final answer
    x = 88,675.03

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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.