Home / 91,307.38-136,956.30-32,143.45

Finding the Fourth Proportional to 91,307.38, 136,956.30 and 32,143.45

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Solution

The fourth proportional to 91,307.38, 136,956.30 and 32,143.45 is: 48,213.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,307.38 : 136,956.30 = 32,143.45 : x
  2. Step 2: Convert to fraction form
    91,307.38/136,956.30 = 32,143.45/x
  3. Step 3: Cross multiply
    91,307.38x = 136,956.30 × 32,143.45
  4. Step 4: Simplify right side
    91,307.38x = 4,402,247,981.24
  5. Step 5: Solve for x
    x = 4,402,247,981.24/91,307.38
  6. Step 6: Final answer
    x = 48,213.50

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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.