Home / 92,989.21-128,325.86-50,547.64

Finding the Fourth Proportional to 92,989.21, 128,325.86 and 50,547.64

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Solution

The fourth proportional to 92,989.21, 128,325.86 and 50,547.64 is: 69,756.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,989.21 : 128,325.86 = 50,547.64 : x
  2. Step 2: Convert to fraction form
    92,989.21/128,325.86 = 50,547.64/x
  3. Step 3: Cross multiply
    92,989.21x = 128,325.86 × 50,547.64
  4. Step 4: Simplify right side
    92,989.21x = 6,486,569,373.97
  5. Step 5: Solve for x
    x = 6,486,569,373.97/92,989.21
  6. Step 6: Final answer
    x = 69,756.15

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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.