Home / 80,533.32-111,127.86-47,018.76

Finding the Fourth Proportional to 80,533.32, 111,127.86 and 47,018.76

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Solution

The fourth proportional to 80,533.32, 111,127.86 and 47,018.76 is: 64,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,533.32 : 111,127.86 = 47,018.76 : x
  2. Step 2: Convert to fraction form
    80,533.32/111,127.86 = 47,018.76/x
  3. Step 3: Cross multiply
    80,533.32x = 111,127.86 × 47,018.76
  4. Step 4: Simplify right side
    80,533.32x = 5,225,094,178.65
  5. Step 5: Solve for x
    x = 5,225,094,178.65/80,533.32
  6. Step 6: Final answer
    x = 64,881.15

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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.