Home / 55,336.86-76,368.47-31,465.76

Finding the Fourth Proportional to 55,336.86, 76,368.47 and 31,465.76

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Solution

The fourth proportional to 55,336.86, 76,368.47 and 31,465.76 is: 43,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,336.86 : 76,368.47 = 31,465.76 : x
  2. Step 2: Convert to fraction form
    55,336.86/76,368.47 = 31,465.76/x
  3. Step 3: Cross multiply
    55,336.86x = 76,368.47 × 31,465.76
  4. Step 4: Simplify right side
    55,336.86x = 2,402,991,409.42
  5. Step 5: Solve for x
    x = 2,402,991,409.42/55,336.86
  6. Step 6: Final answer
    x = 43,424.79

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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.