Home / 90,832.40-136,271.64-59,728.40

Finding the Fourth Proportional to 90,832.40, 136,271.64 and 59,728.40

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Solution

The fourth proportional to 90,832.40, 136,271.64 and 59,728.40 is: 89,607.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,832.40 : 136,271.64 = 59,728.40 : x
  2. Step 2: Convert to fraction form
    90,832.40/136,271.64 = 59,728.40/x
  3. Step 3: Cross multiply
    90,832.40x = 136,271.64 × 59,728.40
  4. Step 4: Simplify right side
    90,832.40x = 8,139,287,022.58
  5. Step 5: Solve for x
    x = 8,139,287,022.58/90,832.40
  6. Step 6: Final answer
    x = 89,607.75

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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.