Home / 56,220.96-77,589.76-31,075.28

Finding the Fourth Proportional to 56,220.96, 77,589.76 and 31,075.28

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Solution

The fourth proportional to 56,220.96, 77,589.76 and 31,075.28 is: 42,886.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,220.96 : 77,589.76 = 31,075.28 : x
  2. Step 2: Convert to fraction form
    56,220.96/77,589.76 = 31,075.28/x
  3. Step 3: Cross multiply
    56,220.96x = 77,589.76 × 31,075.28
  4. Step 4: Simplify right side
    56,220.96x = 2,411,123,517.13
  5. Step 5: Solve for x
    x = 2,411,123,517.13/56,220.96
  6. Step 6: Final answer
    x = 42,886.56

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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.