Home / 55,990.64-77,263.52-30,840.08

Finding the Fourth Proportional to 55,990.64, 77,263.52 and 30,840.08

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Solution

The fourth proportional to 55,990.64, 77,263.52 and 30,840.08 is: 42,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,990.64 : 77,263.52 = 30,840.08 : x
  2. Step 2: Convert to fraction form
    55,990.64/77,263.52 = 30,840.08/x
  3. Step 3: Cross multiply
    55,990.64x = 77,263.52 × 30,840.08
  4. Step 4: Simplify right side
    55,990.64x = 2,382,813,137.88
  5. Step 5: Solve for x
    x = 2,382,813,137.88/55,990.64
  6. Step 6: Final answer
    x = 42,557.35

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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.