Home / 74,289.96-102,495.20-42,436.30

Finding the Fourth Proportional to 74,289.96, 102,495.20 and 42,436.30

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Solution

The fourth proportional to 74,289.96, 102,495.20 and 42,436.30 is: 58,547.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,289.96 : 102,495.20 = 42,436.30 : x
  2. Step 2: Convert to fraction form
    74,289.96/102,495.20 = 42,436.30/x
  3. Step 3: Cross multiply
    74,289.96x = 102,495.20 × 42,436.30
  4. Step 4: Simplify right side
    74,289.96x = 4,349,517,055.76
  5. Step 5: Solve for x
    x = 4,349,517,055.76/74,289.96
  6. Step 6: Final answer
    x = 58,547.84

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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.