Home / 72,134.16-99,541.93-40,302.37

Finding the Fourth Proportional to 72,134.16, 99,541.93 and 40,302.37

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Solution

The fourth proportional to 72,134.16, 99,541.93 and 40,302.37 is: 55,615.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,134.16 : 99,541.93 = 40,302.37 : x
  2. Step 2: Convert to fraction form
    72,134.16/99,541.93 = 40,302.37/x
  3. Step 3: Cross multiply
    72,134.16x = 99,541.93 × 40,302.37
  4. Step 4: Simplify right side
    72,134.16x = 4,011,775,693.37
  5. Step 5: Solve for x
    x = 4,011,775,693.37/72,134.16
  6. Step 6: Final answer
    x = 55,615.48

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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.