Home / 72,877.08-100,577.54-42,660.58

Finding the Fourth Proportional to 72,877.08, 100,577.54 and 42,660.58

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Solution

The fourth proportional to 72,877.08, 100,577.54 and 42,660.58 is: 58,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,877.08 : 100,577.54 = 42,660.58 : x
  2. Step 2: Convert to fraction form
    72,877.08/100,577.54 = 42,660.58/x
  3. Step 3: Cross multiply
    72,877.08x = 100,577.54 × 42,660.58
  4. Step 4: Simplify right side
    72,877.08x = 4,290,696,191.37
  5. Step 5: Solve for x
    x = 4,290,696,191.37/72,877.08
  6. Step 6: Final answer
    x = 58,875.80

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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.