Home / 72,133.32-99,541.95-40,302.23

Finding the Fourth Proportional to 72,133.32, 99,541.95 and 40,302.23

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Solution

The fourth proportional to 72,133.32, 99,541.95 and 40,302.23 is: 55,615.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,133.32 : 99,541.95 = 40,302.23 : x
  2. Step 2: Convert to fraction form
    72,133.32/99,541.95 = 40,302.23/x
  3. Step 3: Cross multiply
    72,133.32x = 99,541.95 × 40,302.23
  4. Step 4: Simplify right side
    72,133.32x = 4,011,761,914.71
  5. Step 5: Solve for x
    x = 4,011,761,914.71/72,133.32
  6. Step 6: Final answer
    x = 55,615.93

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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.