Home / 56,455.44-77,904.27-30,957.72

Finding the Fourth Proportional to 56,455.44, 77,904.27 and 30,957.72

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Solution

The fourth proportional to 56,455.44, 77,904.27 and 30,957.72 is: 42,719.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,455.44 : 77,904.27 = 30,957.72 : x
  2. Step 2: Convert to fraction form
    56,455.44/77,904.27 = 30,957.72/x
  3. Step 3: Cross multiply
    56,455.44x = 77,904.27 × 30,957.72
  4. Step 4: Simplify right side
    56,455.44x = 2,411,738,577.46
  5. Step 5: Solve for x
    x = 2,411,738,577.46/56,455.44
  6. Step 6: Final answer
    x = 42,719.33

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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.