Home / 85,908.06-128,894.90-48,510.36

Finding the Fourth Proportional to 85,908.06, 128,894.90 and 48,510.36

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Solution

The fourth proportional to 85,908.06, 128,894.90 and 48,510.36 is: 72,784.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,908.06 : 128,894.90 = 48,510.36 : x
  2. Step 2: Convert to fraction form
    85,908.06/128,894.90 = 48,510.36/x
  3. Step 3: Cross multiply
    85,908.06x = 128,894.90 × 48,510.36
  4. Step 4: Simplify right side
    85,908.06x = 6,252,737,758.61
  5. Step 5: Solve for x
    x = 6,252,737,758.61/85,908.06
  6. Step 6: Final answer
    x = 72,784.06

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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.