Home / 85,838.24-128,591.30-48,284.20

Finding the Fourth Proportional to 85,838.24, 128,591.30 and 48,284.20

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Solution

The fourth proportional to 85,838.24, 128,591.30 and 48,284.20 is: 72,332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,838.24 : 128,591.30 = 48,284.20 : x
  2. Step 2: Convert to fraction form
    85,838.24/128,591.30 = 48,284.20/x
  3. Step 3: Cross multiply
    85,838.24x = 128,591.30 × 48,284.20
  4. Step 4: Simplify right side
    85,838.24x = 6,208,928,047.46
  5. Step 5: Solve for x
    x = 6,208,928,047.46/85,838.24
  6. Step 6: Final answer
    x = 72,332.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.