Home / 91,007.20-136,510.80-59,514.40

Finding the Fourth Proportional to 91,007.20, 136,510.80 and 59,514.40

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Solution

The fourth proportional to 91,007.20, 136,510.80 and 59,514.40 is: 89,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,007.20 : 136,510.80 = 59,514.40 : x
  2. Step 2: Convert to fraction form
    91,007.20/136,510.80 = 59,514.40/x
  3. Step 3: Cross multiply
    91,007.20x = 136,510.80 × 59,514.40
  4. Step 4: Simplify right side
    91,007.20x = 8,124,358,355.52
  5. Step 5: Solve for x
    x = 8,124,358,355.52/91,007.20
  6. Step 6: Final answer
    x = 89,271.60

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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.