Home / 90,008.40-124,063.44-63,823.20

Finding the Fourth Proportional to 90,008.40, 124,063.44 and 63,823.20

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Solution

The fourth proportional to 90,008.40, 124,063.44 and 63,823.20 is: 87,970.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,008.40 : 124,063.44 = 63,823.20 : x
  2. Step 2: Convert to fraction form
    90,008.40/124,063.44 = 63,823.20/x
  3. Step 3: Cross multiply
    90,008.40x = 124,063.44 × 63,823.20
  4. Step 4: Simplify right side
    90,008.40x = 7,918,125,743.81
  5. Step 5: Solve for x
    x = 7,918,125,743.81/90,008.40
  6. Step 6: Final answer
    x = 87,970.96

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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.