Home / 90,684.36-125,148.58-50,402.05

Finding the Fourth Proportional to 90,684.36, 125,148.58 and 50,402.05

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Solution

The fourth proportional to 90,684.36, 125,148.58 and 50,402.05 is: 69,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,684.36 : 125,148.58 = 50,402.05 : x
  2. Step 2: Convert to fraction form
    90,684.36/125,148.58 = 50,402.05/x
  3. Step 3: Cross multiply
    90,684.36x = 125,148.58 × 50,402.05
  4. Step 4: Simplify right side
    90,684.36x = 6,307,744,547.71
  5. Step 5: Solve for x
    x = 6,307,744,547.71/90,684.36
  6. Step 6: Final answer
    x = 69,557.14

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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.