Home / 72,985.60-100,582.50-52,808.32

Finding the Fourth Proportional to 72,985.60, 100,582.50 and 52,808.32

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Solution

The fourth proportional to 72,985.60, 100,582.50 and 52,808.32 is: 72,775.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,985.60 : 100,582.50 = 52,808.32 : x
  2. Step 2: Convert to fraction form
    72,985.60/100,582.50 = 52,808.32/x
  3. Step 3: Cross multiply
    72,985.60x = 100,582.50 × 52,808.32
  4. Step 4: Simplify right side
    72,985.60x = 5,311,592,846.40
  5. Step 5: Solve for x
    x = 5,311,592,846.40/72,985.60
  6. Step 6: Final answer
    x = 72,775.90

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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.