Home / 98,320.74-135,682.66-55,878.18

Finding the Fourth Proportional to 98,320.74, 135,682.66 and 55,878.18

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Solution

The fourth proportional to 98,320.74, 135,682.66 and 55,878.18 is: 77,111.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,320.74 : 135,682.66 = 55,878.18 : x
  2. Step 2: Convert to fraction form
    98,320.74/135,682.66 = 55,878.18/x
  3. Step 3: Cross multiply
    98,320.74x = 135,682.66 × 55,878.18
  4. Step 4: Simplify right side
    98,320.74x = 7,581,700,098.36
  5. Step 5: Solve for x
    x = 7,581,700,098.36/98,320.74
  6. Step 6: Final answer
    x = 77,111.91

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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.