Home / 91,510.17-137,288.93-53,591.49

Finding the Fourth Proportional to 91,510.17, 137,288.93 and 53,591.49

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Solution

The fourth proportional to 91,510.17, 137,288.93 and 53,591.49 is: 80,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,510.17 : 137,288.93 = 53,591.49 : x
  2. Step 2: Convert to fraction form
    91,510.17/137,288.93 = 53,591.49/x
  3. Step 3: Cross multiply
    91,510.17x = 137,288.93 × 53,591.49
  4. Step 4: Simplify right side
    91,510.17x = 7,357,518,051.25
  5. Step 5: Solve for x
    x = 7,357,518,051.25/91,510.17
  6. Step 6: Final answer
    x = 80,401.10

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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.