Home / 55,264.88-76,265.34-31,386.80

Finding the Fourth Proportional to 55,264.88, 76,265.34 and 31,386.80

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Solution

The fourth proportional to 55,264.88, 76,265.34 and 31,386.80 is: 43,313.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,264.88 : 76,265.34 = 31,386.80 : x
  2. Step 2: Convert to fraction form
    55,264.88/76,265.34 = 31,386.80/x
  3. Step 3: Cross multiply
    55,264.88x = 76,265.34 × 31,386.80
  4. Step 4: Simplify right side
    55,264.88x = 2,393,724,973.51
  5. Step 5: Solve for x
    x = 2,393,724,973.51/55,264.88
  6. Step 6: Final answer
    x = 43,313.67

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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.