Home / 90,388.76-124,740.66-50,103.40

Finding the Fourth Proportional to 90,388.76, 124,740.66 and 50,103.40

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Solution

The fourth proportional to 90,388.76, 124,740.66 and 50,103.40 is: 69,145.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,388.76 : 124,740.66 = 50,103.40 : x
  2. Step 2: Convert to fraction form
    90,388.76/124,740.66 = 50,103.40/x
  3. Step 3: Cross multiply
    90,388.76x = 124,740.66 × 50,103.40
  4. Step 4: Simplify right side
    90,388.76x = 6,249,931,184.24
  5. Step 5: Solve for x
    x = 6,249,931,184.24/90,388.76
  6. Step 6: Final answer
    x = 69,145.00

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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.