Home / 42,858.56-64,312.13-23,136.68

Finding the Fourth Proportional to 42,858.56, 64,312.13 and 23,136.68

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Solution

The fourth proportional to 42,858.56, 64,312.13 and 23,136.68 is: 34,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,858.56 : 64,312.13 = 23,136.68 : x
  2. Step 2: Convert to fraction form
    42,858.56/64,312.13 = 23,136.68/x
  3. Step 3: Cross multiply
    42,858.56x = 64,312.13 × 23,136.68
  4. Step 4: Simplify right side
    42,858.56x = 1,487,968,734.68
  5. Step 5: Solve for x
    x = 1,487,968,734.68/42,858.56
  6. Step 6: Final answer
    x = 34,718.13

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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.