Home / 55,881.55-77,116.35-31,352.40

Finding the Fourth Proportional to 55,881.55, 77,116.35 and 31,352.40

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Solution

The fourth proportional to 55,881.55, 77,116.35 and 31,352.40 is: 43,266.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,881.55 : 77,116.35 = 31,352.40 : x
  2. Step 2: Convert to fraction form
    55,881.55/77,116.35 = 31,352.40/x
  3. Step 3: Cross multiply
    55,881.55x = 77,116.35 × 31,352.40
  4. Step 4: Simplify right side
    55,881.55x = 2,417,782,769.31
  5. Step 5: Solve for x
    x = 2,417,782,769.31/55,881.55
  6. Step 6: Final answer
    x = 43,266.21

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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.