Home / 90,320.16-124,496.55-61,239.11

Finding the Fourth Proportional to 90,320.16, 124,496.55 and 61,239.11

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Solution

The fourth proportional to 90,320.16, 124,496.55 and 61,239.11 is: 84,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,320.16 : 124,496.55 = 61,239.11 : x
  2. Step 2: Convert to fraction form
    90,320.16/124,496.55 = 61,239.11/x
  3. Step 3: Cross multiply
    90,320.16x = 124,496.55 × 61,239.11
  4. Step 4: Simplify right side
    90,320.16x = 7,624,057,297.59
  5. Step 5: Solve for x
    x = 7,624,057,297.59/90,320.16
  6. Step 6: Final answer
    x = 84,411.47

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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.