Home / 70,312.02-105,467.76-28,210.92

Finding the Fourth Proportional to 70,312.02, 105,467.76 and 28,210.92

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Solution

The fourth proportional to 70,312.02, 105,467.76 and 28,210.92 is: 42,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,312.02 : 105,467.76 = 28,210.92 : x
  2. Step 2: Convert to fraction form
    70,312.02/105,467.76 = 28,210.92/x
  3. Step 3: Cross multiply
    70,312.02x = 105,467.76 × 28,210.92
  4. Step 4: Simplify right side
    70,312.02x = 2,975,342,539.94
  5. Step 5: Solve for x
    x = 2,975,342,539.94/70,312.02
  6. Step 6: Final answer
    x = 42,316.27

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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.