Home / 98,038.45-135,281.95-55,012.32

Finding the Fourth Proportional to 98,038.45, 135,281.95 and 55,012.32

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Solution

The fourth proportional to 98,038.45, 135,281.95 and 55,012.32 is: 75,910.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,038.45 : 135,281.95 = 55,012.32 : x
  2. Step 2: Convert to fraction form
    98,038.45/135,281.95 = 55,012.32/x
  3. Step 3: Cross multiply
    98,038.45x = 135,281.95 × 55,012.32
  4. Step 4: Simplify right side
    98,038.45x = 7,442,173,923.62
  5. Step 5: Solve for x
    x = 7,442,173,923.62/98,038.45
  6. Step 6: Final answer
    x = 75,910.77

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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.