Home / 55,806.12-77,013.02-30,312.74

Finding the Fourth Proportional to 55,806.12, 77,013.02 and 30,312.74

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Solution

The fourth proportional to 55,806.12, 77,013.02 and 30,312.74 is: 41,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,806.12 : 77,013.02 = 30,312.74 : x
  2. Step 2: Convert to fraction form
    55,806.12/77,013.02 = 30,312.74/x
  3. Step 3: Cross multiply
    55,806.12x = 77,013.02 × 30,312.74
  4. Step 4: Simplify right side
    55,806.12x = 2,334,475,651.87
  5. Step 5: Solve for x
    x = 2,334,475,651.87/55,806.12
  6. Step 6: Final answer
    x = 41,831.89

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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.