Home / 72,715.34-100,313.48-42,501.93

Finding the Fourth Proportional to 72,715.34, 100,313.48 and 42,501.93

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Solution

The fourth proportional to 72,715.34, 100,313.48 and 42,501.93 is: 58,632.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,715.34 : 100,313.48 = 42,501.93 : x
  2. Step 2: Convert to fraction form
    72,715.34/100,313.48 = 42,501.93/x
  3. Step 3: Cross multiply
    72,715.34x = 100,313.48 × 42,501.93
  4. Step 4: Simplify right side
    72,715.34x = 4,263,516,292.51
  5. Step 5: Solve for x
    x = 4,263,516,292.51/72,715.34
  6. Step 6: Final answer
    x = 58,632.97

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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.