Home / 72,421.02-99,945.18-40,600.08

Finding the Fourth Proportional to 72,421.02, 99,945.18 and 40,600.08

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Solution

The fourth proportional to 72,421.02, 99,945.18 and 40,600.08 is: 56,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,421.02 : 99,945.18 = 40,600.08 : x
  2. Step 2: Convert to fraction form
    72,421.02/99,945.18 = 40,600.08/x
  3. Step 3: Cross multiply
    72,421.02x = 99,945.18 × 40,600.08
  4. Step 4: Simplify right side
    72,421.02x = 4,057,782,303.61
  5. Step 5: Solve for x
    x = 4,057,782,303.61/72,421.02
  6. Step 6: Final answer
    x = 56,030.45

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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.