Home / 56,070.93-77,377.63-30,920.43

Finding the Fourth Proportional to 56,070.93, 77,377.63 and 30,920.43

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Solution

The fourth proportional to 56,070.93, 77,377.63 and 30,920.43 is: 42,670.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,070.93 : 77,377.63 = 30,920.43 : x
  2. Step 2: Convert to fraction form
    56,070.93/77,377.63 = 30,920.43/x
  3. Step 3: Cross multiply
    56,070.93x = 77,377.63 × 30,920.43
  4. Step 4: Simplify right side
    56,070.93x = 2,392,549,862.82
  5. Step 5: Solve for x
    x = 2,392,549,862.82/56,070.93
  6. Step 6: Final answer
    x = 42,670.06

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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.