Home / 55,862.32-77,090.52-30,712

Finding the Fourth Proportional to 55,862.32, 77,090.52 and 30,712

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Solution

The fourth proportional to 55,862.32, 77,090.52 and 30,712 is: 42,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,862.32 : 77,090.52 = 30,712 : x
  2. Step 2: Convert to fraction form
    55,862.32/77,090.52 = 30,712/x
  3. Step 3: Cross multiply
    55,862.32x = 77,090.52 × 30,712
  4. Step 4: Simplify right side
    55,862.32x = 2,367,604,050.24
  5. Step 5: Solve for x
    x = 2,367,604,050.24/55,862.32
  6. Step 6: Final answer
    x = 42,382.85

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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.