Home / 72,430.72-99,957.12-40,600.24

Finding the Fourth Proportional to 72,430.72, 99,957.12 and 40,600.24

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Solution

The fourth proportional to 72,430.72, 99,957.12 and 40,600.24 is: 56,029.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,430.72 : 99,957.12 = 40,600.24 : x
  2. Step 2: Convert to fraction form
    72,430.72/99,957.12 = 40,600.24/x
  3. Step 3: Cross multiply
    72,430.72x = 99,957.12 × 40,600.24
  4. Step 4: Simplify right side
    72,430.72x = 4,058,283,061.71
  5. Step 5: Solve for x
    x = 4,058,283,061.71/72,430.72
  6. Step 6: Final answer
    x = 56,029.86

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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.