Home / 90,111.16-124,349.88-53,818.75

Finding the Fourth Proportional to 90,111.16, 124,349.88 and 53,818.75

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Solution

The fourth proportional to 90,111.16, 124,349.88 and 53,818.75 is: 74,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,111.16 : 124,349.88 = 53,818.75 : x
  2. Step 2: Convert to fraction form
    90,111.16/124,349.88 = 53,818.75/x
  3. Step 3: Cross multiply
    90,111.16x = 124,349.88 × 53,818.75
  4. Step 4: Simplify right side
    90,111.16x = 6,692,355,104.25
  5. Step 5: Solve for x
    x = 6,692,355,104.25/90,111.16
  6. Step 6: Final answer
    x = 74,267.77

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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.