Home / 98,378.04-135,756-58,077.10

Finding the Fourth Proportional to 98,378.04, 135,756 and 58,077.10

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Solution

The fourth proportional to 98,378.04, 135,756 and 58,077.10 is: 80,143.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,378.04 : 135,756 = 58,077.10 : x
  2. Step 2: Convert to fraction form
    98,378.04/135,756 = 58,077.10/x
  3. Step 3: Cross multiply
    98,378.04x = 135,756 × 58,077.10
  4. Step 4: Simplify right side
    98,378.04x = 7,884,314,787.60
  5. Step 5: Solve for x
    x = 7,884,314,787.60/98,378.04
  6. Step 6: Final answer
    x = 80,143.04

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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.