Home / 90,458.06-124,750.40-56,469.69

Finding the Fourth Proportional to 90,458.06, 124,750.40 and 56,469.69

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Solution

The fourth proportional to 90,458.06, 124,750.40 and 56,469.69 is: 77,877.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,458.06 : 124,750.40 = 56,469.69 : x
  2. Step 2: Convert to fraction form
    90,458.06/124,750.40 = 56,469.69/x
  3. Step 3: Cross multiply
    90,458.06x = 124,750.40 × 56,469.69
  4. Step 4: Simplify right side
    90,458.06x = 7,044,616,133.03
  5. Step 5: Solve for x
    x = 7,044,616,133.03/90,458.06
  6. Step 6: Final answer
    x = 77,877.16

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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.