Home / 56,323.76-77,740.68-40,455.92

Finding the Fourth Proportional to 56,323.76, 77,740.68 and 40,455.92

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Solution

The fourth proportional to 56,323.76, 77,740.68 and 40,455.92 is: 55,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,323.76 : 77,740.68 = 40,455.92 : x
  2. Step 2: Convert to fraction form
    56,323.76/77,740.68 = 40,455.92/x
  3. Step 3: Cross multiply
    56,323.76x = 77,740.68 × 40,455.92
  4. Step 4: Simplify right side
    56,323.76x = 3,145,070,730.83
  5. Step 5: Solve for x
    x = 3,145,070,730.83/56,323.76
  6. Step 6: Final answer
    x = 55,839.15

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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.