Home / 99,632.78-137,486.36-56,031.85

Finding the Fourth Proportional to 99,632.78, 137,486.36 and 56,031.85

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Solution

The fourth proportional to 99,632.78, 137,486.36 and 56,031.85 is: 77,320.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,632.78 : 137,486.36 = 56,031.85 : x
  2. Step 2: Convert to fraction form
    99,632.78/137,486.36 = 56,031.85/x
  3. Step 3: Cross multiply
    99,632.78x = 137,486.36 × 56,031.85
  4. Step 4: Simplify right side
    99,632.78x = 7,703,614,413.13
  5. Step 5: Solve for x
    x = 7,703,614,413.13/99,632.78
  6. Step 6: Final answer
    x = 77,320.08

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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.