Home / 56,376.90-77,799.12-30,883.77

Finding the Fourth Proportional to 56,376.90, 77,799.12 and 30,883.77

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Solution

The fourth proportional to 56,376.90, 77,799.12 and 30,883.77 is: 42,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,376.90 : 77,799.12 = 30,883.77 : x
  2. Step 2: Convert to fraction form
    56,376.90/77,799.12 = 30,883.77/x
  3. Step 3: Cross multiply
    56,376.90x = 77,799.12 × 30,883.77
  4. Step 4: Simplify right side
    56,376.90x = 2,402,730,128.28
  5. Step 5: Solve for x
    x = 2,402,730,128.28/56,376.90
  6. Step 6: Final answer
    x = 42,619.05

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1.5x scale

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.