Home / 89,931.36-124,105.47-49,645.18

Finding the Fourth Proportional to 89,931.36, 124,105.47 and 49,645.18

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Solution

The fourth proportional to 89,931.36, 124,105.47 and 49,645.18 is: 68,510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,931.36 : 124,105.47 = 49,645.18 : x
  2. Step 2: Convert to fraction form
    89,931.36/124,105.47 = 49,645.18/x
  3. Step 3: Cross multiply
    89,931.36x = 124,105.47 × 49,645.18
  4. Step 4: Simplify right side
    89,931.36x = 6,161,238,017.05
  5. Step 5: Solve for x
    x = 6,161,238,017.05/89,931.36
  6. Step 6: Final answer
    x = 68,510.45

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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.