Home / 47,145.60-70,718.40-40,730.40

Finding the Fourth Proportional to 47,145.60, 70,718.40 and 40,730.40

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Solution

The fourth proportional to 47,145.60, 70,718.40 and 40,730.40 is: 61,095.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,145.60 : 70,718.40 = 40,730.40 : x
  2. Step 2: Convert to fraction form
    47,145.60/70,718.40 = 40,730.40/x
  3. Step 3: Cross multiply
    47,145.60x = 70,718.40 × 40,730.40
  4. Step 4: Simplify right side
    47,145.60x = 2,880,388,719.36
  5. Step 5: Solve for x
    x = 2,880,388,719.36/47,145.60
  6. Step 6: Final answer
    x = 61,095.60

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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.