Home / 88,570.84-122,158.64-56,742.70

Finding the Fourth Proportional to 88,570.84, 122,158.64 and 56,742.70

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Solution

The fourth proportional to 88,570.84, 122,158.64 and 56,742.70 is: 78,260.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,570.84 : 122,158.64 = 56,742.70 : x
  2. Step 2: Convert to fraction form
    88,570.84/122,158.64 = 56,742.70/x
  3. Step 3: Cross multiply
    88,570.84x = 122,158.64 × 56,742.70
  4. Step 4: Simplify right side
    88,570.84x = 6,931,611,061.93
  5. Step 5: Solve for x
    x = 6,931,611,061.93/88,570.84
  6. Step 6: Final answer
    x = 78,260.64

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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.