Home / 81,557.47-112,547.95-47,585.71

Finding the Fourth Proportional to 81,557.47, 112,547.95 and 47,585.71

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Solution

The fourth proportional to 81,557.47, 112,547.95 and 47,585.71 is: 65,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,557.47 : 112,547.95 = 47,585.71 : x
  2. Step 2: Convert to fraction form
    81,557.47/112,547.95 = 47,585.71/x
  3. Step 3: Cross multiply
    81,557.47x = 112,547.95 × 47,585.71
  4. Step 4: Simplify right side
    81,557.47x = 5,355,674,109.79
  5. Step 5: Solve for x
    x = 5,355,674,109.79/81,557.47
  6. Step 6: Final answer
    x = 65,667.49

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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.