Home / 91,018.20-125,590.86-50,719.08

Finding the Fourth Proportional to 91,018.20, 125,590.86 and 50,719.08

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Solution

The fourth proportional to 91,018.20, 125,590.86 and 50,719.08 is: 69,984.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,018.20 : 125,590.86 = 50,719.08 : x
  2. Step 2: Convert to fraction form
    91,018.20/125,590.86 = 50,719.08/x
  3. Step 3: Cross multiply
    91,018.20x = 125,590.86 × 50,719.08
  4. Step 4: Simplify right side
    91,018.20x = 6,369,852,875.61
  5. Step 5: Solve for x
    x = 6,369,852,875.61/91,018.20
  6. Step 6: Final answer
    x = 69,984.39

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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.