Home / 55,915.83-77,148.54-38,900.97

Finding the Fourth Proportional to 55,915.83, 77,148.54 and 38,900.97

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Solution

The fourth proportional to 55,915.83, 77,148.54 and 38,900.97 is: 53,672.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,915.83 : 77,148.54 = 38,900.97 : x
  2. Step 2: Convert to fraction form
    55,915.83/77,148.54 = 38,900.97/x
  3. Step 3: Cross multiply
    55,915.83x = 77,148.54 × 38,900.97
  4. Step 4: Simplify right side
    55,915.83x = 3,001,153,040.08
  5. Step 5: Solve for x
    x = 3,001,153,040.08/55,915.83
  6. Step 6: Final answer
    x = 53,672.69

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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.