Home / 74,715.10-112,072.65-70,924.30

Finding the Fourth Proportional to 74,715.10, 112,072.65 and 70,924.30

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Solution

The fourth proportional to 74,715.10, 112,072.65 and 70,924.30 is: 106,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,715.10 : 112,072.65 = 70,924.30 : x
  2. Step 2: Convert to fraction form
    74,715.10/112,072.65 = 70,924.30/x
  3. Step 3: Cross multiply
    74,715.10x = 112,072.65 × 70,924.30
  4. Step 4: Simplify right side
    74,715.10x = 7,948,674,250.40
  5. Step 5: Solve for x
    x = 7,948,674,250.40/74,715.10
  6. Step 6: Final answer
    x = 106,386.45

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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.