Home / 65,155.40-89,924.10-41,284.30

Finding the Fourth Proportional to 65,155.40, 89,924.10 and 41,284.30

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Solution

The fourth proportional to 65,155.40, 89,924.10 and 41,284.30 is: 56,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,155.40 : 89,924.10 = 41,284.30 : x
  2. Step 2: Convert to fraction form
    65,155.40/89,924.10 = 41,284.30/x
  3. Step 3: Cross multiply
    65,155.40x = 89,924.10 × 41,284.30
  4. Step 4: Simplify right side
    65,155.40x = 3,712,453,521.63
  5. Step 5: Solve for x
    x = 3,712,453,521.63/65,155.40
  6. Step 6: Final answer
    x = 56,978.45

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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.