Home / 65,343.13-90,159.63-38,475.83

Finding the Fourth Proportional to 65,343.13, 90,159.63 and 38,475.83

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Solution

The fourth proportional to 65,343.13, 90,159.63 and 38,475.83 is: 53,088.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,343.13 : 90,159.63 = 38,475.83 : x
  2. Step 2: Convert to fraction form
    65,343.13/90,159.63 = 38,475.83/x
  3. Step 3: Cross multiply
    65,343.13x = 90,159.63 × 38,475.83
  4. Step 4: Simplify right side
    65,343.13x = 3,468,966,596.74
  5. Step 5: Solve for x
    x = 3,468,966,596.74/65,343.13
  6. Step 6: Final answer
    x = 53,088.47

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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.