Home / 90,013.18-124,220.64-53,735.69

Finding the Fourth Proportional to 90,013.18, 124,220.64 and 53,735.69

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Solution

The fourth proportional to 90,013.18, 124,220.64 and 53,735.69 is: 74,156.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,013.18 : 124,220.64 = 53,735.69 : x
  2. Step 2: Convert to fraction form
    90,013.18/124,220.64 = 53,735.69/x
  3. Step 3: Cross multiply
    90,013.18x = 124,220.64 × 53,735.69
  4. Step 4: Simplify right side
    90,013.18x = 6,675,081,802.64
  5. Step 5: Solve for x
    x = 6,675,081,802.64/90,013.18
  6. Step 6: Final answer
    x = 74,156.72

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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.