Home / 56,071.07-77,378.02-30,577.49

Finding the Fourth Proportional to 56,071.07, 77,378.02 and 30,577.49

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Solution

The fourth proportional to 56,071.07, 77,378.02 and 30,577.49 is: 42,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,071.07 : 77,378.02 = 30,577.49 : x
  2. Step 2: Convert to fraction form
    56,071.07/77,378.02 = 30,577.49/x
  3. Step 3: Cross multiply
    56,071.07x = 77,378.02 × 30,577.49
  4. Step 4: Simplify right side
    56,071.07x = 2,366,025,574.27
  5. Step 5: Solve for x
    x = 2,366,025,574.27/56,071.07
  6. Step 6: Final answer
    x = 42,196.90

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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.