Home / 84,897.20-127,345.80-45,531.20

Finding the Fourth Proportional to 84,897.20, 127,345.80 and 45,531.20

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Solution

The fourth proportional to 84,897.20, 127,345.80 and 45,531.20 is: 68,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,897.20 : 127,345.80 = 45,531.20 : x
  2. Step 2: Convert to fraction form
    84,897.20/127,345.80 = 45,531.20/x
  3. Step 3: Cross multiply
    84,897.20x = 127,345.80 × 45,531.20
  4. Step 4: Simplify right side
    84,897.20x = 5,798,207,088.96
  5. Step 5: Solve for x
    x = 5,798,207,088.96/84,897.20
  6. Step 6: Final answer
    x = 68,296.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.