Home / 85,690.24-128,313.90-59,118.16

Finding the Fourth Proportional to 85,690.24, 128,313.90 and 59,118.16

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Solution

The fourth proportional to 85,690.24, 128,313.90 and 59,118.16 is: 88,524.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,690.24 : 128,313.90 = 59,118.16 : x
  2. Step 2: Convert to fraction form
    85,690.24/128,313.90 = 59,118.16/x
  3. Step 3: Cross multiply
    85,690.24x = 128,313.90 × 59,118.16
  4. Step 4: Simplify right side
    85,690.24x = 7,585,681,670.42
  5. Step 5: Solve for x
    x = 7,585,681,670.42/85,690.24
  6. Step 6: Final answer
    x = 88,524.45

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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.