Home / 56,361.26-77,780.96-31,210.76

Finding the Fourth Proportional to 56,361.26, 77,780.96 and 31,210.76

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Solution

The fourth proportional to 56,361.26, 77,780.96 and 31,210.76 is: 43,072.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,361.26 : 77,780.96 = 31,210.76 : x
  2. Step 2: Convert to fraction form
    56,361.26/77,780.96 = 31,210.76/x
  3. Step 3: Cross multiply
    56,361.26x = 77,780.96 × 31,210.76
  4. Step 4: Simplify right side
    56,361.26x = 2,427,602,875.13
  5. Step 5: Solve for x
    x = 2,427,602,875.13/56,361.26
  6. Step 6: Final answer
    x = 43,072.19

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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.