Home / 74,155.37-102,339.65-42,329.05

Finding the Fourth Proportional to 74,155.37, 102,339.65 and 42,329.05

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Solution

The fourth proportional to 74,155.37, 102,339.65 and 42,329.05 is: 58,417.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,155.37 : 102,339.65 = 42,329.05 : x
  2. Step 2: Convert to fraction form
    74,155.37/102,339.65 = 42,329.05/x
  3. Step 3: Cross multiply
    74,155.37x = 102,339.65 × 42,329.05
  4. Step 4: Simplify right side
    74,155.37x = 4,331,940,011.81
  5. Step 5: Solve for x
    x = 4,331,940,011.81/74,155.37
  6. Step 6: Final answer
    x = 58,417.08

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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.