Home / 88,011.76-121,424.34-57,813.34

Finding the Fourth Proportional to 88,011.76, 121,424.34 and 57,813.34

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Solution

The fourth proportional to 88,011.76, 121,424.34 and 57,813.34 is: 79,761.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,011.76 : 121,424.34 = 57,813.34 : x
  2. Step 2: Convert to fraction form
    88,011.76/121,424.34 = 57,813.34/x
  3. Step 3: Cross multiply
    88,011.76x = 121,424.34 × 57,813.34
  4. Step 4: Simplify right side
    88,011.76x = 7,019,946,652.70
  5. Step 5: Solve for x
    x = 7,019,946,652.70/88,011.76
  6. Step 6: Final answer
    x = 79,761.46

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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.