Home / 90,271.37-124,575.80-49,985.05

Finding the Fourth Proportional to 90,271.37, 124,575.80 and 49,985.05

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Solution

The fourth proportional to 90,271.37, 124,575.80 and 49,985.05 is: 68,980.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,271.37 : 124,575.80 = 49,985.05 : x
  2. Step 2: Convert to fraction form
    90,271.37/124,575.80 = 49,985.05/x
  3. Step 3: Cross multiply
    90,271.37x = 124,575.80 × 49,985.05
  4. Step 4: Simplify right side
    90,271.37x = 6,226,927,591.79
  5. Step 5: Solve for x
    x = 6,226,927,591.79/90,271.37
  6. Step 6: Final answer
    x = 68,980.09

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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.