Home / 57,037.30-78,718.23-34,387.74

Finding the Fourth Proportional to 57,037.30, 78,718.23 and 34,387.74

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Solution

The fourth proportional to 57,037.30, 78,718.23 and 34,387.74 is: 47,459.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,037.30 : 78,718.23 = 34,387.74 : x
  2. Step 2: Convert to fraction form
    57,037.30/78,718.23 = 34,387.74/x
  3. Step 3: Cross multiply
    57,037.30x = 78,718.23 × 34,387.74
  4. Step 4: Simplify right side
    57,037.30x = 2,706,942,026.50
  5. Step 5: Solve for x
    x = 2,706,942,026.50/57,037.30
  6. Step 6: Final answer
    x = 47,459.16

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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.