Home / 72,041.64-99,421.35-40,210.26

Finding the Fourth Proportional to 72,041.64, 99,421.35 and 40,210.26

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Solution

The fourth proportional to 72,041.64, 99,421.35 and 40,210.26 is: 55,492.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,041.64 : 99,421.35 = 40,210.26 : x
  2. Step 2: Convert to fraction form
    72,041.64/99,421.35 = 40,210.26/x
  3. Step 3: Cross multiply
    72,041.64x = 99,421.35 × 40,210.26
  4. Step 4: Simplify right side
    72,041.64x = 3,997,758,333.05
  5. Step 5: Solve for x
    x = 3,997,758,333.05/72,041.64
  6. Step 6: Final answer
    x = 55,492.33

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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.