Home / 72,864.60-100,554.80-40,601.32

Finding the Fourth Proportional to 72,864.60, 100,554.80 and 40,601.32

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Solution

The fourth proportional to 72,864.60, 100,554.80 and 40,601.32 is: 56,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,864.60 : 100,554.80 = 40,601.32 : x
  2. Step 2: Convert to fraction form
    72,864.60/100,554.80 = 40,601.32/x
  3. Step 3: Cross multiply
    72,864.60x = 100,554.80 × 40,601.32
  4. Step 4: Simplify right side
    72,864.60x = 4,082,657,612.34
  5. Step 5: Solve for x
    x = 4,082,657,612.34/72,864.60
  6. Step 6: Final answer
    x = 56,030.74

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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.