Home / 90,411.89-124,768.87-52,173.05

Finding the Fourth Proportional to 90,411.89, 124,768.87 and 52,173.05

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Solution

The fourth proportional to 90,411.89, 124,768.87 and 52,173.05 is: 71,999.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,411.89 : 124,768.87 = 52,173.05 : x
  2. Step 2: Convert to fraction form
    90,411.89/124,768.87 = 52,173.05/x
  3. Step 3: Cross multiply
    90,411.89x = 124,768.87 × 52,173.05
  4. Step 4: Simplify right side
    90,411.89x = 6,509,572,492.95
  5. Step 5: Solve for x
    x = 6,509,572,492.95/90,411.89
  6. Step 6: Final answer
    x = 71,999.08

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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.