Home / 65,000.25-89,700.93-38,143.19

Finding the Fourth Proportional to 65,000.25, 89,700.93 and 38,143.19

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Solution

The fourth proportional to 65,000.25, 89,700.93 and 38,143.19 is: 52,637.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,000.25 : 89,700.93 = 38,143.19 : x
  2. Step 2: Convert to fraction form
    65,000.25/89,700.93 = 38,143.19/x
  3. Step 3: Cross multiply
    65,000.25x = 89,700.93 × 38,143.19
  4. Step 4: Simplify right side
    65,000.25x = 3,421,479,840.42
  5. Step 5: Solve for x
    x = 3,421,479,840.42/65,000.25
  6. Step 6: Final answer
    x = 52,637.95

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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.