Home / 78,856.20-118,284.30-37,384.20

Finding the Fourth Proportional to 78,856.20, 118,284.30 and 37,384.20

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Solution

The fourth proportional to 78,856.20, 118,284.30 and 37,384.20 is: 56,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,856.20 : 118,284.30 = 37,384.20 : x
  2. Step 2: Convert to fraction form
    78,856.20/118,284.30 = 37,384.20/x
  3. Step 3: Cross multiply
    78,856.20x = 118,284.30 × 37,384.20
  4. Step 4: Simplify right side
    78,856.20x = 4,421,963,928.06
  5. Step 5: Solve for x
    x = 4,421,963,928.06/78,856.20
  6. Step 6: Final answer
    x = 56,076.30

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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.