Home / 74,715.60-112,073.40-57,000.90

Finding the Fourth Proportional to 74,715.60, 112,073.40 and 57,000.90

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Solution

The fourth proportional to 74,715.60, 112,073.40 and 57,000.90 is: 85,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,715.60 : 112,073.40 = 57,000.90 : x
  2. Step 2: Convert to fraction form
    74,715.60/112,073.40 = 57,000.90/x
  3. Step 3: Cross multiply
    74,715.60x = 112,073.40 × 57,000.90
  4. Step 4: Simplify right side
    74,715.60x = 6,388,284,666.06
  5. Step 5: Solve for x
    x = 6,388,284,666.06/74,715.60
  6. Step 6: Final answer
    x = 85,501.35

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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.