Home / 74,281.10-102,507.60-40,289.45

Finding the Fourth Proportional to 74,281.10, 102,507.60 and 40,289.45

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Solution

The fourth proportional to 74,281.10, 102,507.60 and 40,289.45 is: 55,599.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,281.10 : 102,507.60 = 40,289.45 : x
  2. Step 2: Convert to fraction form
    74,281.10/102,507.60 = 40,289.45/x
  3. Step 3: Cross multiply
    74,281.10x = 102,507.60 × 40,289.45
  4. Step 4: Simplify right side
    74,281.10x = 4,129,974,312.28
  5. Step 5: Solve for x
    x = 4,129,974,312.28/74,281.10
  6. Step 6: Final answer
    x = 55,599.27

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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.