Home / 91,156.56-125,802.35-50,878.18

Finding the Fourth Proportional to 91,156.56, 125,802.35 and 50,878.18

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Solution

The fourth proportional to 91,156.56, 125,802.35 and 50,878.18 is: 70,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,156.56 : 125,802.35 = 50,878.18 : x
  2. Step 2: Convert to fraction form
    91,156.56/125,802.35 = 50,878.18/x
  3. Step 3: Cross multiply
    91,156.56x = 125,802.35 × 50,878.18
  4. Step 4: Simplify right side
    91,156.56x = 6,400,594,607.72
  5. Step 5: Solve for x
    x = 6,400,594,607.72/91,156.56
  6. Step 6: Final answer
    x = 70,215.40

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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.