Home / 66,510.65-91,777.16-38,225.45

Finding the Fourth Proportional to 66,510.65, 91,777.16 and 38,225.45

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Solution

The fourth proportional to 66,510.65, 91,777.16 and 38,225.45 is: 52,746.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,510.65 : 91,777.16 = 38,225.45 : x
  2. Step 2: Convert to fraction form
    66,510.65/91,777.16 = 38,225.45/x
  3. Step 3: Cross multiply
    66,510.65x = 91,777.16 × 38,225.45
  4. Step 4: Simplify right side
    66,510.65x = 3,508,223,565.73
  5. Step 5: Solve for x
    x = 3,508,223,565.73/66,510.65
  6. Step 6: Final answer
    x = 52,746.79

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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.