Home / 92,856.48-128,152.20-55,133.04

Finding the Fourth Proportional to 92,856.48, 128,152.20 and 55,133.04

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Solution

The fourth proportional to 92,856.48, 128,152.20 and 55,133.04 is: 76,089.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,856.48 : 128,152.20 = 55,133.04 : x
  2. Step 2: Convert to fraction form
    92,856.48/128,152.20 = 55,133.04/x
  3. Step 3: Cross multiply
    92,856.48x = 128,152.20 × 55,133.04
  4. Step 4: Simplify right side
    92,856.48x = 7,065,420,368.69
  5. Step 5: Solve for x
    x = 7,065,420,368.69/92,856.48
  6. Step 6: Final answer
    x = 76,089.69

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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.